nbr class         type  introduced driving wheel  total  extinct
0         141    2 - 4 - 0        1869    ft6in (mm)      2     1915
1          38    2 - 4 - 0        1869    ft0in (mm)      1     1912
2         418    2 - 4 - 0        1873    ft0in (mm)      8     1927
3          40    2 - 4 - 0        1873    ft0in (mm)      2     1903
4         224    4 - 4 - 0        1871    ft6in (mm)      2     1919
5         420    4 - 4 - 0        1873    ft6in (mm)      4     1918
6         251    0 - 6 - 0        1867    ft3in (mm)     38     1924
7          56    0 - 6 - 0        1868    ft0in (mm)      8     1914
8          17    0 - 6 - 0        1869    ft6in (mm)      1     1914
9         396    0 - 6 - 0        1867    ft0in (mm)     88     1937
10        293    0 - 6 - 0        1872    ft0in (mm)      1     1907
11        357    0 - 4 - 0        1868    ft3in (mm)      2     1925
12        226  0 - 6 - 0st        1870    ft0in (mm)      2     1924
13        229  0 - 6 - 0st        1871    ft0in (mm)     15     1924
14        112  0 - 6 - 0st        1870    ft6in (mm)      3     1910
15        282  0 - 6 - 0st        1866    ft1in (mm)      3     1921
16        130  0 - 6 - 0st        1870    ft3in (mm)     10     1924
17         32  0 - 6 - 0st        1874    ft6in (mm)      6     1907
18         18  0 - 4 - 0st        1872    ft0in (mm)      2     1906

Table as JSON:
{"nbr class":{"0":141,"1":38,"2":418,"3":40,"4":224,"5":420,"6":251,"7":56,"8":17,"9":396,"10":293,"11":357,"12":226,"13":229,"14":112,"15":282,"16":130,"17":32,"18":18},"type":{"0":"2 - 4 - 0","1":"2 - 4 - 0","2":"2 - 4 - 0","3":"2 - 4 - 0","4":"4 - 4 - 0","5":"4 - 4 - 0","6":"0 - 6 - 0","7":"0 - 6 - 0","8":"0 - 6 - 0","9":"0 - 6 - 0","10":"0 - 6 - 0","11":"0 - 4 - 0","12":"0 - 6 - 0st","13":"0 - 6 - 0st","14":"0 - 6 - 0st","15":"0 - 6 - 0st","16":"0 - 6 - 0st","17":"0 - 6 - 0st","18":"0 - 4 - 0st"},"introduced":{"0":1869,"1":1869,"2":1873,"3":1873,"4":1871,"5":1873,"6":1867,"7":1868,"8":1869,"9":1867,"10":1872,"11":1868,"12":1870,"13":1871,"14":1870,"15":1866,"16":1870,"17":1874,"18":1872},"driving wheel":{"0":"ft6in (mm)","1":"ft0in (mm)","2":"ft0in (mm)","3":"ft0in (mm)","4":"ft6in (mm)","5":"ft6in (mm)","6":"ft3in (mm)","7":"ft0in (mm)","8":"ft6in (mm)","9":"ft0in (mm)","10":"ft0in (mm)","11":"ft3in (mm)","12":"ft0in (mm)","13":"ft0in (mm)","14":"ft6in (mm)","15":"ft1in (mm)","16":"ft3in (mm)","17":"ft6in (mm)","18":"ft0in (mm)"},"total":{"0":2,"1":1,"2":8,"3":2,"4":2,"5":4,"6":38,"7":8,"8":1,"9":88,"10":1,"11":2,"12":2,"13":15,"14":3,"15":3,"16":10,"17":6,"18":2},"extinct":{"0":1915,"1":1912,"2":1927,"3":1903,"4":1919,"5":1918,"6":1924,"7":1914,"8":1914,"9":1937,"10":1907,"11":1925,"12":1924,"13":1924,"14":1910,"15":1921,"16":1924,"17":1907,"18":1906}}