U.S. NATIONAL PERCENT AREA MODERATELY TO EXTREMELY DRY
AND MODERATELY TO EXTREMELY WET
YEAR/MONTH   DRY   WET
1900  1     33.9   2.9
1900  2     17.9   3.8
1900  3     22.7   5.8
1900  4     19.5  13.6
1900  5     29.0  10.4
1900  6     29.5  17.1
1900  7     28.4  16.2
1900  8     26.8  10.4
1900  9     27.0  15.3
1900 10     27.5  16.0
1900 11     23.1  17.6
1900 12     26.3   9.2
1901  1     26.4   4.8
1901  2     28.7   6.3
1901  3     26.9   5.6
1901  4     20.0   3.2
1901  5     20.7   9.4
1901  6     28.2  11.6
1901  7     39.5  10.1
1901  8     39.9  15.1
1901  9     34.9  17.3
1901 10     36.5  12.6
1901 11     43.3   6.7
1901 12     44.0  10.4
1902  1     45.7   4.8
1902  2     43.1   9.5
1902  3     42.2  13.7
1902  4     48.8   8.7
1902  5     40.7   8.4
1902  6     37.2   6.9
1902  7     32.3  17.6
1902  8     41.4  16.9
1902  9     29.8  17.5
1902 10     29.3  16.2
1902 11     22.9  19.3
1902 12     20.0  22.9
1903  1     18.9  23.3
1903  2     14.0  34.5
1903  3     10.6  32.4
1903  4     11.2  24.2
1903  5     11.2  24.7
1903  6      9.7  22.8
1903  7     12.4  28.9
1903  8     14.3  36.0
1903  9     14.8  29.4
1903 10     18.0  24.3
1903 11     20.5  20.1
1903 12     22.9  14.1
1904  1     25.5  13.3
1904  2     26.0  16.5
1904  3     29.0  30.3
1904  4     29.4  25.7
1904  5     26.1  19.9
1904  6     23.6  15.4
1904  7     20.8  22.0
1904  8     17.8  23.4
1904  9     18.6  24.9
1904 10     24.7  27.9
1904 11     30.1  10.5
1904 12     33.6   6.4
1905  1     28.8   6.1
1905  2     26.0  10.0
1905  3     26.1  16.6
1905  4     24.6  28.3
1905  5     17.3  30.5
1905  6     10.0  36.1
1905  7      8.9  44.5
1905  8     11.3  43.2
1905  9     10.7  38.1
1905 10      6.9  32.7
1905 11      9.9  40.8
1905 12     10.7  38.3
1906  1      8.2  38.9
1906  2      7.3  32.0
1906  3      4.5  41.8
1906  4      8.2  32.9
1906  5      3.6  39.1
1906  6      2.3  40.8
1906  7      1.5  50.1
1906  8      2.7  58.0
1906  9      1.5  55.5
1906 10      0.7  49.2
1906 11      1.6  48.6
1906 12      1.8  50.9
1907  1      4.1  57.6
1907  2      4.5  42.9
1907  3     11.2  37.8
1907  4      5.1  35.8
1907  5      2.5  44.0
1907  6      2.2  45.2
1907  7      2.6  49.0
1907  8      5.1  51.3
1907  9      1.4  48.8
1907 10      1.6  43.6
1907 11      1.1  37.2
1907 12      0.1  38.0
1908  1      0.9  25.3
1908  2      0.5  32.9
1908  3      1.1  21.1
1908  4      3.7  20.1
1908  5      1.6  34.7
1908  6      2.8  32.8
1908  7      1.9  33.3
1908  8      3.0  37.4
1908  9      8.6  27.5
1908 10     13.7  32.1
1908 11     18.2  27.5
1908 12     20.6  24.8
1909  1     22.2  29.8
1909  2     13.0  34.5
1909  3     15.0  29.5
1909  4     12.9  26.4
1909  5     13.8  27.2
1909  6     13.3  32.5
1909  7     14.0  36.6
1909  8     14.1  28.8
1909  9     15.4  27.0
1909 10     16.7  22.9
1909 11     17.0  30.9
1909 12     13.8  36.1
1910  1     13.5  41.4
1910  2     10.3  38.2
1910  3     28.7  15.4
1910  4     27.6  10.6
1910  5     24.7   8.4
1910  6     39.0   5.4
1910  7     43.2   9.3
1910  8     47.7   9.0
1910  9     41.3   7.8
1910 10     40.5  10.3
1910 11     37.4   6.7
1910 12     41.2   4.2
1911  1     36.4  13.2
1911  2     34.4  15.0
1911  3     43.7  13.4
1911  4     30.9  12.0
1911  5     37.0  12.3
1911  6     49.0  15.3
1911  7     43.6  21.6
1911  8     30.8  16.0
1911  9     29.4  16.1
1911 10     21.4  19.8
1911 11     16.9  19.3
1911 12      5.4  18.8
1912  1      7.5  17.5
1912  2      8.6  17.1
1912  3      2.7  21.1
1912  4      2.0  28.6
1912  5      1.8  30.7
1912  6      4.5  31.9
1912  7      4.1  39.1
1912  8      1.5  42.2
1912  9      3.0  42.0
1912 10      2.3  37.4
1912 11      4.4  30.5
1912 12      6.2  24.3
1913  1      5.1  29.9
1913  2      4.6  23.4
1913  3      3.8  30.9
1913  4      4.5  20.6
1913  5      4.9  17.6
1913  6      8.1  17.5
1913  7     12.6  22.1
1913  8     25.7  19.2
1913  9     18.5  22.5
1913 10     11.4  25.5
1913 11     14.1  25.7
1913 12     12.8  27.9
1914  1     15.9  27.0
1914  2     10.8  27.4
1914  3     12.4  24.8
1914  4     10.7  27.1
1914  5     18.1  26.6
1914  6     21.9  33.3
1914  7     25.1  36.9
1914  8     21.4  35.6
1914  9     20.6  24.1
1914 10     15.2  29.2
1914 11     22.6  14.2
1914 12     18.1  19.3
1915  1     14.5  26.6
1915  2     11.9  28.7
1915  3     17.5  24.9
1915  4     27.5  25.3
1915  5     12.8  33.7
1915  6     12.4  37.0
1915  7      7.1  48.9
1915  8      7.4  53.9
1915  9      6.2  55.5
1915 10      6.7  43.6
1915 11      3.4  37.9
1915 12      1.9  39.4
1916  1      3.1  60.1
1916  2      3.2  56.0
1916  3     10.5  54.1
1916  4     10.0  45.6
1916  5      7.9  47.3
1916  6     11.7  50.4
1916  7      5.3  50.1
1916  8      4.3  45.3
1916  9      7.5  35.5
1916 10      6.6  36.3
1916 11     10.8  32.0
1916 12     13.1  31.5
1917  1     15.5  30.3
1917  2     21.0  33.4
1917  3     20.7  31.6
1917  4     16.6  34.7
1917  5     14.4  37.7
1917  6     15.2  34.7
1917  7     18.8  31.0
1917  8     13.3  27.1
1917  9     14.0  22.2
1917 10     18.4  19.7
1917 11     25.0   7.4
1917 12     28.8   8.2
1918  1     26.0  11.5
1918  2     30.0  10.7
1918  3     38.1   7.4
1918  4     22.2   8.5
1918  5     24.1   5.8
1918  6     38.5   5.4
1918  7     39.9   8.2
1918  8     39.8   9.2
1918  9     33.5  13.1
1918 10     18.8  11.2
1918 11      9.8  10.8
1918 12      7.9  12.5
1919  1      8.2   9.8
1919  2      2.3  16.8
1919  3      3.0  17.2
1919  4      3.5  19.4
1919  5      8.0  21.9
1919  6     17.1  23.8
1919  7     20.9  28.9
1919  8     24.6  26.1
1919  9     23.4  20.6
1919 10      9.8  24.1
1919 11      8.4  37.5
1919 12      8.1  29.9
1920  1     16.6  31.0
1920  2     16.2  26.4
1920  3      8.6  25.5
1920  4      1.9  37.2
1920  5      4.9  37.7
1920  6      4.9  39.7
1920  7      4.3  38.8
1920  8      3.1  45.5
1920  9      0.8  38.7
1920 10      3.3  32.5
1920 11      4.6  35.5
1920 12      4.1  36.0
1921  1      4.9  30.2
1921  2      6.6  24.9
1921  3      7.9  14.2
1921  4      8.4  16.3
1921  5      9.0  17.4
1921  6     14.0  19.7
1921  7     16.0  24.4
1921  8     16.0  21.3
1921  9     14.4  14.4
1921 10     20.7   6.7
1921 11     23.3   5.6
1921 12     27.4  11.3
1922  1     22.2  10.5
1922  2     15.2  10.1
1922  3      6.8  14.2
1922  4      7.6  22.1
1922  5      5.9  25.9
1922  6      7.2  25.9
1922  7      9.6  31.7
1922  8     13.1  26.0
1922  9     18.6   7.4
1922 10     21.8   2.6
1922 11     22.3   9.0
1922 12     20.4  12.0
1923  1     17.5   9.1
1923  2     19.2   8.9
1923  3     15.7   8.2
1923  4     11.4  14.0
1923  5      9.9  14.6
1923  6      9.7  21.8
1923  7      9.8  27.3
1923  8      8.5  30.8
1923  9      7.3  29.6
1923 10      6.9  33.2
1923 11     10.2  29.9
1923 12     11.8  36.8
1924  1     14.2  32.3
1924  2     15.9  27.2
1924  3     15.6  29.2
1924  4     15.5  29.2
1924  5     20.3  26.8
1924  6     20.9  25.8
1924  7     21.5  20.8
1924  8     26.0  17.6
1924  9     25.3  23.8
1924 10     25.4  13.6
1924 11     31.0   9.2
1924 12     20.3  10.2
1925  1     21.2  12.8
1925  2     29.9   8.9
1925  3     40.8   4.3
1925  4     42.8   3.2
1925  5     54.0   2.4
1925  6     46.8   6.4
1925  7     40.6   6.1
1925  8     41.1   6.1
1925  9     36.9   8.4
1925 10     20.3  15.0
1925 11     17.9  14.0
1925 12     20.2   8.8
1926  1     13.3  12.8
1926  2     13.9   9.0
1926  3     19.0  11.0
1926  4     20.4  15.5
1926  5     28.2  18.4
1926  6     31.5  15.8
1926  7     33.5  17.6
1926  8     23.6  15.0
1926  9     20.2  21.5
1926 10     19.6  22.4
1926 11     11.2  25.7
1926 12     10.7  28.2
1927  1     12.4  22.3
1927  2      9.7  19.8
1927  3     12.7  19.8
1927  4     10.2  28.7
1927  5     13.7  35.5
1927  6     11.0  36.5
1927  7     10.2  36.0
1927  8     14.0  36.3
1927  9     15.7  39.5
1927 10     10.8  36.5
1927 11     15.1  36.3
1927 12      9.5  35.0
1928  1     17.8  27.4
1928  2      9.5  23.8
1928  3     12.6  18.1
1928  4      8.1  20.3
1928  5     13.2  11.2
1928  6     14.0  34.0
1928  7     17.4  35.3
1928  8     18.6  34.5
1928  9     18.7  30.5
1928 10     16.8  29.9
1928 11     16.3  29.0
1928 12     20.4  20.3
1929  1     17.7  25.8
1929  2     20.0  27.6
1929  3     20.4  26.6
1929  4      9.7  29.6
1929  5     16.5  30.6
1929  6     15.6  26.7
1929  7     13.9  26.3
1929  8     17.7  17.5
1929  9     13.9  19.8
1929 10     14.2  23.0
1929 11     20.6  24.4
1929 12     17.7  18.3
1930  1     13.1  22.2
1930  2     10.0  12.2
1930  3     14.6  10.4
1930  4     23.2   5.4
1930  5     14.6   6.1
1930  6     26.5   6.1
1930  7     42.6   9.2
1930  8     46.9  13.0
1930  9     43.8  11.6
1930 10     28.4  11.7
1930 11     28.3  11.8
1930 12     32.3   6.5
1931  1     36.7   7.5
1931  2     43.8  12.6
1931  3     42.9  13.7
1931  4     46.7  15.4
1931  5     49.7  13.9
1931  6     52.5   9.8
1931  7     51.0  10.4
1931  8     49.7  11.1
1931  9     54.8   8.0
1931 10     51.4   7.5
1931 11     44.9  10.2
1931 12     31.5  13.6
1932  1     21.0  22.6
1932  2     23.4  22.2
1932  3     14.4  17.5
1932  4     16.8  12.1
1932  5     16.6  11.1
1932  6     15.5  14.7
1932  7     20.2  17.6
1932  8     20.4  20.1
1932  9     22.5  18.1
1932 10     17.5  18.8
1932 11     16.3  17.2
1932 12     15.3  19.6
1933  1     14.1  12.6
1933  2     15.5  12.7
1933  3     13.7   8.3
1933  4      9.3  10.5
1933  5      5.2  15.6
1933  6     20.9   5.0
1933  7     27.0   6.6
1933  8     24.3   7.1
1933  9     30.0   6.1
1933 10     36.8   4.2
1933 11     47.1   0.9
1933 12     48.6   4.0
1934  1     50.0   3.7
1934  2     52.1   0.7
1934  3     55.5   2.1
1934  4     63.6   0.6
1934  5     73.1   0.9
1934  6     74.1   1.2
1934  7     79.9   1.4
1934  8     77.5   1.0
1934  9     70.2   1.2
1934 10     67.7   0.8
1934 11     58.8   2.5
1934 12     57.4   1.9
1935  1     47.4   3.3
1935  2     49.4   1.8
1935  3     45.8   1.8
1935  4     37.6   5.2
1935  5     23.6  17.5
1935  6     23.5  23.3
1935  7     23.5  20.9
1935  8     22.9  17.9
1935  9     26.0  14.9
1935 10     30.1   8.9
1935 11     27.3   8.8
1935 12     28.7   6.8
1936  1     19.6   9.3
1936  2     12.0  14.7
1936  3     15.8  10.7
1936  4     24.9   9.6
1936  5     30.6   3.5
1936  6     45.1   4.2
1936  7     52.3   4.6
1936  8     54.4   4.9
1936  9     46.9   5.8
1936 10     42.0   9.6
1936 11     50.0   3.5
1936 12     42.4   7.4
1937  1     30.9  21.0
1937  2     26.3  14.9
1937  3     25.1  11.8
1937  4     20.6  12.4
1937  5     20.8   8.5
1937  6     24.3  16.2
1937  7     24.2  15.8
1937  8     28.4  12.2
1937  9     32.6   9.9
1937 10     26.2  10.3
1937 11     27.5  10.3
1937 12     24.9   7.2
1938  1     25.1   7.3
1938  2     22.5  12.6
1938  3     22.1  20.1
1938  4     15.7  16.8
1938  5      8.2  18.4
1938  6      8.2  19.8
1938  7      7.1  29.5
1938  8     12.2  15.5
1938  9     12.7  19.0
1938 10     22.6  14.1
1938 11     22.1  13.4
1938 12     27.9  12.6
1939  1     22.0  11.5
1939  2     14.4  17.8
1939  3     20.3  10.4
1939  4     24.3  11.5
1939  5     28.3   3.8
1939  6     25.5   6.5
1939  7     31.9   5.6
1939  8     34.8   7.2
1939  9     42.5   7.5
1939 10     43.5   4.2
1939 11     57.4   3.1
1939 12     62.1   2.6
1940  1     57.7   0.8
1940  2     43.2   7.3
1940  3     43.9   6.6
1940  4     22.0   6.7
1940  5     29.7   2.0
1940  6     30.9   6.7
1940  7     39.4   7.8
1940  8     34.9  13.0
1940  9     28.1   6.0
1940 10     29.3   3.1
1940 11     20.2  12.1
1940 12     21.4  17.3
1941  1     19.2  17.2
1941  2     22.9  21.4
1941  3     25.3  23.2
1941  4     24.2  32.4
1941  5     31.9  30.7
1941  6     23.3  36.2
1941  7     19.3  40.0
1941  8     18.7  45.0
1941  9     16.7  48.9
1941 10     13.7  56.5
1941 11     15.9  51.4
1941 12     12.5  56.1
1942  1     14.9  45.0
1942  2     13.9  43.1
1942  3      9.2  41.2
1942  4     13.4  40.9
1942  5     10.7  45.0
1942  6      8.0  50.9
1942  7      7.0  49.2
1942  8      3.7  47.8
1942  9      3.7  46.8
1942 10      5.2  37.9
1942 11      7.6  37.8
1942 12      6.2  45.9
1943  1      6.4  41.6
1943  2     10.4  32.2
1943  3      6.0  32.8
1943  4      8.2  25.3
1943  5     10.1  31.1
1943  6     10.5  34.1
1943  7     12.6  30.5
1943  8     17.2  27.6
1943  9     17.0   9.9
1943 10     19.5  12.1
1943 11     26.1   6.7
1943 12     23.8   4.7
1944  1     28.0   5.5
1944  2     16.7   6.8
1944  3     13.8   9.8
1944  4      8.1  21.3
1944  5     11.9  21.1
1944  6      8.2  28.6
1944  7     13.2  28.4
1944  8     14.9  28.7
1944  9     12.9  21.7
1944 10     18.6  10.1
1944 11     16.2  18.8
1944 12     17.5  16.0
1945  1     20.7  14.8
1945  2     10.6  18.8
1945  3     10.0  24.8
1945  4      7.6  30.0
1945  5      5.0  26.9
1945  6      8.1  37.5
1945  7      5.5  42.7
1945  8      4.3  39.4
1945  9      4.3  48.5
1945 10      3.2  37.8
1945 11      4.8  33.3
1945 12      3.8  37.3
1946  1      1.9  31.3
1946  2      5.0  24.6
1946  3      7.0  16.3
1946  4     14.2   6.9
1946  5     13.5  14.2
1946  6     18.1  15.8
1946  7     19.2  16.7
1946  8     16.2  16.5
1946  9     11.2  18.3
1946 10      7.3  24.2
1946 11      5.2  38.1
1946 12      5.8  34.0
1947  1      4.8  31.3
1947  2      9.2  17.7
1947  3     13.6  19.3
1947  4     12.5  23.8
1947  5     13.3  28.3
1947  6      9.1  35.6
1947  7     11.5  30.4
1947  8     10.0  21.2
1947  9     17.3  19.4
1947 10     25.6  19.9
1947 11     18.4  26.3
1947 12     15.5  21.4
1948  1     18.3  18.4
1948  2     13.8  20.8
1948  3      8.4  20.1
1948  4      7.5  20.9
1948  5      9.1  18.1
1948  6      9.3  21.6
1948  7     14.9  27.1
1948  8     17.1  24.0
1948  9     19.0  16.3
1948 10     22.0   9.9
1948 11     21.9  19.5
1948 12     18.4  20.8
1949  1      5.9  26.9
1949  2      4.9  26.7
1949  3      4.9  22.0
1949  4      8.5  14.0
1949  5      7.5  15.0
1949  6     11.6  25.4
1949  7     12.4  29.5
1949  8     15.1  22.7
1949  9     13.9  19.5
1949 10     12.9  25.1
1949 11     18.6   5.3
1949 12     20.7   7.7
1950  1     11.1  13.8
1950  2     17.0  16.2
1950  3     18.1  16.6
1950  4     20.5  16.4
1950  5     23.9  13.0
1950  6     26.0  14.5
1950  7      9.4  30.7
1950  8     16.9  29.3
1950  9     14.2  31.1
1950 10     19.9  24.7
1950 11     20.1  26.2
1950 12     25.1  22.2
1951  1     25.9  23.8
1951  2     24.5  23.6
1951  3     23.5  25.5
1951  4     18.3  25.2
1951  5     20.2  14.3
1951  6     23.6  21.0
1951  7     26.5  23.2
1951  8     25.1  26.5
1951  9     23.1  25.5
1951 10     25.4  30.6
1951 11     19.6  32.1
1951 12     15.5  37.2
1952  1     15.3  42.8
1952  2     15.7  35.3
1952  3     14.3  45.8
1952  4     10.6  34.4
1952  5     12.6  29.5
1952  6     18.2  22.2
1952  7     25.7  23.0
1952  8     26.1  22.3
1952  9     34.0   9.7
1952 10     51.8   1.4
1952 11     47.8   4.6
1952 12     45.4   4.6
1953  1     37.2   2.6
1953  2     30.4   1.6
1953  3     29.5   3.6
1953  4     17.9   5.9
1953  5     16.7  15.7
1953  6     25.7  16.3
1953  7     27.0  17.8
1953  8     31.4  17.6
1953  9     43.0  10.9
1953 10     49.1   5.4
1953 11     50.4   4.6
1953 12     47.8   7.5
1954  1     43.2   6.2
1954  2     53.9   3.6
1954  3     46.4   3.2
1954  4     55.9   4.3
1954  5     46.3   5.0
1954  6     57.9  10.7
1954  7     60.4   7.4
1954  8     56.4  13.0
1954  9     56.7  12.7
1954 10     51.5  11.1
1954 11     57.2   6.7
1954 12     59.5   5.9
1955  1     58.4   3.2
1955  2     51.4   3.7
1955  3     55.2   5.5
1955  4     53.6   2.5
1955  5     47.5   2.5
1955  6     46.2   1.6
1955  7     38.2   5.3
1955  8     38.5   6.2
1955  9     42.0   2.0
1955 10     48.8   5.4
1955 11     47.8   7.2
1955 12     51.6  11.0
1956  1     50.7  14.9
1956  2     42.9  15.0
1956  3     45.6  10.9
1956  4     42.7   8.9
1956  5     44.7  10.1
1956  6     48.9   9.1
1956  7     44.1  11.1
1956  8     47.1  11.2
1956  9     51.8   6.7
1956 10     53.5   9.9
1956 11     54.6   2.3
1956 12     57.6   2.5
1957  1     50.1   2.3
1957  2     50.6   2.8
1957  3     52.6   2.8
1957  4     28.2   9.6
1957  5     13.8  24.3
1957  6     14.7  35.7
1957  7     17.7  32.1
1957  8     18.0  25.9
1957  9     16.3  27.5
1957 10      9.4  34.3
1957 11      6.9  42.8
1957 12      2.7  34.2
1958  1      1.5  31.2
1958  2      1.1  32.0
1958  3      3.9  38.1
1958  4      4.3  45.6
1958  5     10.0  37.8
1958  6      4.6  39.2
1958  7      5.5  48.2
1958  8      8.5  41.8
1958  9     10.1  41.2
1958 10     12.4  27.8
1958 11      9.8  17.5
1958 12     13.8   9.4
1959  1     17.1   9.2
1959  2     12.9  10.0
1959  3     22.4   9.1
1959  4     30.8   8.2
1959  5     26.0   9.6
1959  6     28.2   7.2
1959  7     31.0   7.5
1959  8     28.4   8.5
1959  9     18.3  10.9
1959 10     11.0  22.8
1959 11     13.5  22.9
1959 12     12.7  20.4
1960  1     12.3  21.5
1960  2      9.6  27.7
1960  3     12.7  18.8
1960  4     14.9  14.8
1960  5     14.1  17.3
1960  6     16.4  13.7
1960  7     22.8  15.6
1960  8     23.3  16.7
1960  9     26.5  12.7
1960 10     23.1  13.9
1960 11     21.4   9.2
1960 12     24.2  11.1
1961  1     33.5   9.1
1961  2     29.2  13.3
1961  3     24.0  14.7
1961  4     20.8  10.0
1961  5     24.0  11.5
1961  6     28.2  14.6
1961  7     28.9  21.4
1961  8     24.9  21.4
1961  9     14.2  21.5
1961 10     11.1  18.2
1961 11     11.8  22.9
1961 12     10.6  25.6
1962  1     10.9  27.5
1962  2      6.9  27.0
1962  3      7.8  22.9
1962  4      8.9   9.3
1962  5     10.5   8.5
1962  6     10.5  14.8
1962  7      9.9  22.0
1962  8     18.3  18.2
1962  9     12.2  16.0
1962 10     12.5  16.9
1962 11     16.2  11.9
1962 12     20.9   5.6
1963  1     27.2   5.2
1963  2     30.0   3.7
1963  3     29.2   2.2
1963  4     28.1   6.1
1963  5     35.3   6.7
1963  6     35.3  13.5
1963  7     36.0  16.5
1963  8     28.3  11.3
1963  9     31.4   9.3
1963 10     46.5   6.1
1963 11     41.6   9.9
1963 12     48.1   1.2
1964  1     45.3   3.6
1964  2     43.4   4.6
1964  3     35.7   4.0
1964  4     28.4   6.7
1964  5     32.0   3.4
1964  6     43.0   8.7
1964  7     42.2  12.4
1964  8     33.7  11.7
1964  9     27.6  10.9
1964 10     41.0   8.2
1964 11     34.9   8.4
1964 12     29.9  21.0
1965  1     27.2  19.4
1965  2     18.3  18.1
1965  3     17.0  11.2
1965  4     16.4  17.9
1965  5     18.1  20.9
1965  6     14.5  29.3
1965  7     18.2  34.1
1965  8     14.6  33.2
1965  9     10.4  46.0
1965 10     10.7  33.4
1965 11     14.8  30.3
1965 12     17.6  35.3
1966  1     13.0  30.1
1966  2      9.6  28.1
1966  3     16.3  18.2
1966  4     13.4  11.3
1966  5     29.2  13.0
1966  6     33.5  12.6
1966  7     34.4  10.2
1966  8     25.6  11.7
1966  9     23.9   9.7
1966 10     24.6   7.0
1966 11     22.2   4.8
1966 12     15.5   4.2
1967  1     21.8   7.1
1967  2     25.3   1.8
1967  3     35.4   1.5
1967  4     37.3  12.2
1967  5     24.5  10.3
1967  6     15.2  24.8
1967  7     10.2  23.4
1967  8     10.9  21.8
1967  9      8.4  24.4
1967 10      7.3  19.1
1967 11     14.4  17.1
1967 12      9.8  23.6
1968  1      7.5  16.8
1968  2      9.7  11.4
1968  3     16.6   9.4
1968  4     13.8  11.0
1968  5      9.8  11.8
1968  6     12.2  19.3
1968  7     12.5  21.9
1968  8      9.1  27.3
1968  9     11.8  25.1
1968 10     11.2  19.9
1968 11      5.5  24.3
1968 12      3.8  28.4
1969  1      4.2  37.1
1969  2      2.9  36.0
1969  3      3.1  30.8
1969  4      4.1  24.1
1969  5      5.9  18.5
1969  6      4.2  26.5
1969  7      1.6  31.0
1969  8      5.1  21.0
1969  9      6.9  18.5
1969 10      2.5  30.2
1969 11      5.5  21.9
1969 12      3.6  20.8
1970  1      2.0  15.4
1970  2      6.6  11.9
1970  3      3.3  15.6
1970  4      4.2  17.5
1970  5      7.3  16.8
1970  6      7.3  17.0
1970  7      8.0  15.0
1970  8     14.0   9.3
1970  9      9.9  16.3
1970 10      6.3  20.4
1970 11      6.4  21.0
1970 12      7.1  18.8
1971  1     12.6  20.6
1971  2     11.0  23.6
1971  3     19.5  19.8
1971  4     21.1  15.4
1971  5     19.1  18.5
1971  6     23.7  17.1
1971  7     21.0  17.0
1971  8     10.1  17.2
1971  9      7.2  21.1
1971 10      5.9  28.9
1971 11      7.9  29.3
1971 12      2.0  30.0
1972  1      2.4  29.9
1972  2      2.9  21.3
1972  3     16.0  16.2
1972  4     18.2  16.0
1972  5     23.6  15.1
1972  6     19.2  20.3
1972  7     20.5  24.0
1972  8     18.6  21.5
1972  9     14.4  22.0
1972 10      3.0  31.4
1972 11      0.3  46.1
1972 12      0.0  47.3
1973  1      0.2  46.5
1973  2      5.1  42.2
1973  3      5.9  54.9
1973  4      6.8  67.4
1973  5      8.2  60.0
1973  6      9.6  57.6
1973  7     11.3  58.0
1973  8     12.6  43.0
1973  9      6.9  46.2
1973 10      6.4  36.1
1973 11      3.3  41.2
1973 12      1.5  45.8
1974  1      1.1  51.2
1974  2      5.0  39.2
1974  3      9.0  32.8
1974  4     11.0  30.8
1974  5     15.8  29.0
1974  6     20.0  21.4
1974  7     19.8  14.9
1974  8     16.4  23.8
1974  9     16.9  29.0
1974 10     10.3  25.3
1974 11     13.7  25.1
1974 12     13.7  23.2
1975  1      8.1  26.6
1975  2      7.7  28.8
1975  3      3.3  34.9
1975  4      1.4  38.1
1975  5      1.9  35.6
1975  6      2.6  42.1
1975  7      3.5  45.2
1975  8      5.8  43.9
1975  9      3.3  45.4
1975 10      6.8  43.2
1975 11      3.9  36.0
1975 12      3.9  31.8
1976  1     10.2  26.2
1976  2     10.0  18.3
1976  3     12.5  18.9
1976  4      9.8  11.7
1976  5     12.1  13.9
1976  6     15.5  15.0
1976  7     19.1  18.8
1976  8     24.7  20.8
1976  9     16.8  23.6
1976 10     15.8  27.6
1976 11     23.2  17.1
1976 12     36.6  12.6
1977  1     39.7  12.4
1977  2     43.0   4.8
1977  3     38.1  10.8
1977  4     41.7   7.0
1977  5     43.0   4.1
1977  6     52.5   3.3
1977  7     52.0   1.6
1977  8     33.8   5.1
1977  9     26.9  10.2
1977 10     26.1  16.6
1977 11     22.8  22.9
1977 12     24.4  26.4
1978  1     13.2  28.8
1978  2      6.6  23.6
1978  3      9.4  19.9
1978  4     13.6  26.0
1978  5      7.5  28.7
1978  6      5.9  25.5
1978  7     11.2  27.8
1978  8      9.9  28.9
1978  9     10.1  30.6
1978 10     16.5  16.7
1978 11     11.3  22.7
1978 12     10.0  27.6
1979  1      4.7  36.9
1979  2      0.9  37.1
1979  3      2.1  37.8
1979  4      2.4  45.3
1979  5      2.9  48.6
1979  6      4.0  39.6
1979  7      5.4  49.1
1979  8      3.9  50.7
1979  9      6.7  35.6
1979 10      5.4  32.1
1979 11      6.5  28.2
1979 12      7.8  18.7
1980  1      4.4  23.7
1980  2      7.4  26.4
1980  3      3.8  37.4
1980  4     10.8  31.5
1980  5     12.4  35.4
1980  6     15.2  26.4
1980  7     25.5  23.5
1980  8     24.2  22.8
1980  9     20.6  24.0
1980 10     14.1  18.6
1980 11     19.6  11.7
1980 12     32.8   6.0
1981  1     44.9   3.5
1981  2     42.0   6.4
1981  3     34.5   2.8
1981  4     50.6   4.8
1981  5     33.0   9.1
1981  6     34.2  12.2
1981  7     30.5  18.3
1981  8     24.8  16.8
1981  9     26.0  17.1
1981 10     15.3  25.3
1981 11     19.2  20.0
1981 12     16.4  20.5
1982  1     10.7  26.9
1982  2     10.7  23.7
1982  3     10.2  21.6
1982  4      7.3  21.0
1982  5      7.1  27.6
1982  6      4.9  33.0
1982  7      5.0  37.0
1982  8      4.5  33.9
1982  9      4.2  36.2
1982 10      4.5  40.2
1982 11      2.2  43.2
1982 12      1.6  51.0
1983  1      1.5  42.8
1983  2      1.3  46.2
1983  3      0.7  57.4
1983  4      0.0  59.8
1983  5      0.0  61.3
1983  6      0.1  60.4
1983  7      0.0  43.0
1983  8      8.5  41.7
1983  9     17.0  39.6
1983 10      3.8  35.7
1983 11      1.5  48.6
1983 12      0.7  55.3
1984  1      0.9  39.0
1984  2      0.9  37.5
1984  3      2.7  37.0
1984  4      5.6  44.8
1984  5      6.8  46.6
1984  6      8.5  40.9
1984  7      8.1  43.6
1984  8      9.4  38.7
1984  9     10.1  29.3
1984 10      3.0  42.1
1984 11      3.1  44.5
1984 12      6.2  48.5
1985  1      8.2  40.7
1985  2      8.1  40.8
1985  3     12.4  43.3
1985  4     18.3  32.5
1985  5     21.5  24.2
1985  6     26.0  23.4
1985  7     24.3  24.5
1985  8     18.6  22.9
1985  9      5.5  29.9
1985 10      3.0  36.5
1985 11      0.6  47.9
1985 12      3.8  37.0
1986  1      3.0  22.6
1986  2      4.4  32.7
1986  3      8.2  18.7
1986  4     19.3  15.8
1986  5     16.9  14.3
1986  6     17.1  14.6
1986  7     20.1  19.7
1986  8     17.2  24.0
1986  9     16.4  37.8
1986 10      9.6  40.3
1986 11      6.2  43.0
1986 12      7.8  38.6
1987  1     10.7  37.5
1987  2     13.4  36.3
1987  3     12.4  38.1
1987  4     20.8  23.7
1987  5     23.0  23.1
1987  6     29.9  23.1
1987  7     23.2  22.9
1987  8     26.9  29.9
1987  9     27.7  21.8
1987 10     30.3  16.8
1987 11     27.1  18.6
1987 12     21.7  24.6
1988  1     19.7  18.5
1988  2     24.1  12.0
1988  3     28.3  10.4
1988  4     29.8  13.5
1988  5     37.6  11.6
1988  6     52.3  10.4
1988  7     49.4   8.9
1988  8     49.3  12.3
1988  9     43.2  11.4
1988 10     47.1   8.4
1988 11     34.6   7.0
1988 12     36.9   4.6
1989  1     39.1   4.8
1989  2     36.9   7.2
1989  3     28.2   5.7
1989  4     39.0   4.3
1989  5     40.4   6.1
1989  6     38.1  22.9
1989  7     40.7  23.6
1989  8     32.5  23.8
1989  9     27.9  23.4
1989 10     30.8  20.5
1989 11     37.8  18.1
1989 12     44.1  13.8
1990  1     40.2  12.4
1990  2     38.6  18.5
1990  3     33.7  14.1
1990  4     32.9  13.1
1990  5     27.1  23.2
1990  6     32.9  16.8
1990  7     27.0  15.0
1990  8     28.7  18.1
1990  9     32.0  11.6
1990 10     26.8  17.4
1990 11     28.9  14.4
1990 12     29.8  21.0
1991  1     26.9  22.4
1991  2     33.0  14.0
1991  3     24.3  17.5
1991  4     19.4  22.7
1991  5     13.6  21.3
1991  6     17.3  22.0
1991  7     22.2  20.8
1991  8     25.2  23.3
1991  9     18.4  18.7
1991 10     14.4  17.2
1991 11     11.7  21.7
1991 12     11.0  25.3
1992  1     16.3  22.6
1992  2     17.3  23.0
1992  3     19.5  27.5
1992  4     23.7  22.8
1992  5     28.3  20.5
1992  6     26.3  22.4
1992  7     14.9  31.9
1992  8     15.5  35.7
1992  9     17.1  37.2
1992 10     16.6  27.0
1992 11     16.0  42.0
1992 12     12.7  42.2
1993  1      9.4  51.2
1993  2      8.3  46.4
1993  3      8.2  51.4
1993  4      1.4  49.7
1993  5      2.3  44.6
1993  6      0.0  51.0
1993  7      3.0  56.6
1993  8      8.7  57.7
1993  9      7.1  46.4
1993 10      3.1  48.0
1993 11      5.5  46.5
1993 12      5.7  37.4
1994  1      9.5  35.3
1994  2      7.6  34.0
1994  3     14.9  29.9
1994  4     13.8  29.4
1994  5     12.9  18.5
1994  6     19.2  15.1
1994  7     26.9  22.1
1994  8     30.1  23.5
1994  9     31.7  19.2
1994 10     20.1  25.3
1994 11      8.7  27.4
1994 12     10.1  25.1
1995  1      5.3  33.4
1995  2     10.0  19.9
1995  3      8.0  30.9
1995  4      5.9  34.1
1995  5      3.8  51.6
1995  6      4.0  51.7
1995  7      5.3  50.9
1995  8      9.7  50.3
1995  9      8.9  43.8
1995 10      3.7  39.5
1995 11      5.7  32.6
1995 12      8.1  29.9
1996  1     10.8  38.3
1996  2     18.3  37.4
1996  3     19.3  31.5
1996  4     23.9  34.2
1996  5     26.0  39.8
1996  6     23.6  33.7
1996  7     20.3  36.8
1996  8     10.9  30.9
1996  9      9.8  40.2
1996 10      7.0  40.6
1996 11      6.1  48.9
1996 12      7.6  53.1
1997  1      6.1  50.4
1997  2      5.7  55.5
1997  3      5.3  41.5
1997  4      4.8  45.0
1997  5      6.4  44.3
1997  6      6.2  46.9
1997  7      6.3  46.2
1997  8      6.3  45.5
1997  9      3.5  40.0
1997 10      4.7  41.3
1997 11      4.1  38.4
1997 12      3.8  36.0
1998  1      1.8  40.9
1998  2      1.7  50.8
1998  3      2.4  58.6
1998  4      2.2  51.6
1998  5      2.7  37.0
1998  6     11.2  45.8
1998  7     16.0  48.1
1998  8     17.5  39.4
1998  9     14.1  25.6
1998 10     12.3  39.5
1998 11     15.7  41.7
1998 12     17.3  31.5
1999  1      6.7  34.7
1999  2      9.0  32.5
1999  3     17.2  18.5
1999  4     12.6  30.0
1999  5     17.3  31.9
1999  6     14.5  32.0
1999  7     13.8  33.0
1999  8     19.2  33.2
1999  9     14.5  30.9
1999 10     18.8  19.5
1999 11     32.3   9.7
1999 12     44.7   6.8
2000  1     43.4   6.7
2000  2     40.8   7.1
2000  3     42.8   8.8
2000  4     42.5   8.8
2000  5     43.9   7.2
2000  6     39.0  10.8
2000  7     41.7  13.1
2000  8     50.2  10.1
2000  9     50.8  10.7
2000 10     35.2   8.8
2000 11     19.6  15.5
2000 12     27.1  15.6
2001  1     27.9  17.8
2001  2     25.4  24.2
2001  3     22.6  22.7
2001  4     28.6  15.7
2001  5     30.2  18.7
2001  6     28.3  16.5
2001  7     28.0  16.5
2001  8     29.4  13.9
2001  9     29.7  12.1
2001 10     33.5  15.6
2001 11     33.8  13.8
2001 12     34.0  11.6
2002  1     36.7   9.0
2002  2     39.7   4.0
2002  3     39.9   9.1
2002  4     41.8   7.0
2002  5     45.5  10.3
2002  6     50.9   8.7
2002  7     50.8   6.0
2002  8     49.8   8.3
2002  9     46.0   6.9
2002 10     34.2  14.2
2002 11     35.4  11.1
2002 12     34.7  18.0
2003  1     36.2   5.1
2003  2     33.5  14.1
2003  3     29.6   7.8
2003  4     24.2   9.7
2003  5     22.2  14.5
2003  6     20.4  19.4
2003  7     29.9  21.0
2003  8     37.2  21.4
2003  9     36.4  21.1
2003 10     39.5  20.5
2003 11     36.8  20.4
2003 12     31.1  20.5
2004  1     31.1  12.6
2004  2     22.4  13.6
2004  3     32.0   6.1
2004  4     30.4   9.9
2004  5     28.4  14.2
2004  6     26.4  17.9
2004  7     27.0  24.0
2004  8     23.0  35.3
2004  9     16.5  30.0
2004 10      4.3  38.7
2004 11      6.4  49.4
2004 12      7.2  41.9
2005  1      8.8  51.0
2005  2     12.0  49.4
2005  3     10.7  41.8
2005  4     10.2  38.0
2005  5      6.2  39.2
2005  6      8.3  43.2
2005  7      8.9  39.2
2005  8     10.3  39.1
2005  9     13.6  30.5
2005 10     14.2  33.7
2005 11     15.0  24.6
2005 12     17.9  22.6
2006  1     19.9  22.8
2006  2     24.5  16.8
2006  3     26.9  17.7
2006  4     32.2  17.1
2006  5     41.2  16.6
2006  6     45.1  16.5
2006  7     52.1  14.5
2006  8     38.4  12.1
2006  9     28.6  14.5
2006 10     23.1  21.7
2006 11     23.6  22.0
2006 12     17.9  25.4
2007  1     19.9  22.9