Table 10.  Vacant For-Rent Units, by Selected Characteristic for the United States:
                  1960, 1970, 1975, and 1980 to 2000
(Percent distribution may not add to 100, due to rounding)

Characteristic             1960     1970     1975     1980     1981     1982     1983     1984

Rooms in unit, total...     100      100      100      100      100      100      100      100
  1 and 2 rooms........      30       25       20       19       19       18       16       16
  3 rooms..............      27       27       27       25       27       29       28       26
  4 rooms..............      22       26       32       31       30       29       32       34
  5 rooms or more......      21       22       21       25       24       24       25       25
  Median number or room     3.3      3.4      3.6      3.7      3.6      3.6      3.7      3.7

Bedrooms in unit, total     100      100      100      100      100      100      100      100
  No bedrooms..........      15       19       14       14       14       12       11       11
  1 bedroom............      45       35       35       34       36       37       36       34
  2 bedrooms...........      29       34       39       38       36       37       38       41
  3 bedrooms or more...      11       12       12       14       14       14       15       14

Housing units in struct     100      100      100      100      100      100      100      100
  1 unit...............      33       25       18       20       21       23       22       22
  2 units..............      20       14       13       14       14       14       13       13
  3 and 4 units........      16       14       13       14       15       15       14       15
  5 to 9 units.........      12       16       19       15       14       15       16       16
  10 units or more.....      19       31       37       37       36       33       34       35
  Mobile homes.........    (NA)     (NA)     (NA)     (NA)     (NA)     (NA)     (NA)     (NA)

Duration of vacancy, to     100      100      100      100      100      100      100      100
  Less than 1 month....      31       35       34       37       39       35       35       34
  1 to 2 months........      15       14       15       17       16       17       17       17
  2 to 4 months........      17       16       17       17       17       17       18       18
  4 to 6 months........       9        8       10        9        8       10       10       10
  6 months or more.....      28       27       24       20       20       21       21       21
    6 to 12 months.....    (NA)     (NA)     (NA)     (NA)     (NA)     (NA)     (NA)     (NA)
    1 to 2 years.......    (NA)     (NA)     (NA)     (NA)     (NA)     (NA)     (NA)     (NA)
    2 years or more....    (NA)     (NA)     (NA)     (NA)     (NA)     (NA)     (NA)     (NA)

Year structure built, t     100      100      100      100      100      100      100      100
  1970 or later........    (NA)       19       23       25       25       26       30       36
  1960 to 1969.........    (NA)        7       17       16       16       16       15       13
  1950 to 1959.........    (NA)       10        9       10       11       10        9       10
  1940 to 1949.........    (NA)       11        8        8        9        9        9        9
  1939 or earlier......    (NA)       53       43       41       39       39       37       32

Monthly rent, total....     100      100      100      100      100      100      100      100
  Less than $100.......    (NA)     (NA)     (NA)     (NA)     (NA)     (NA)     (NA)     (NA)
  $100 to $199.........    (NA)     (NA)     (NA)     (NA)     (NA)     (NA)     (NA)     (NA)
  $200 to $249.........    (NA)     (NA)     (NA)     (NA)     (NA)     (NA)     (NA)     (NA)
  $250 to $299.........    (NA)     (NA)     (NA)     (NA)     (NA)     (NA)     (NA)     (NA)
  $300 to $399.........    (NA)     (NA)     (NA)     (NA)     (NA)     (NA)     (NA)     (NA)
  $400 to $499.........    (NA)     (NA)     (NA)     (NA)     (NA)     (NA)     (NA)     (NA)
  $500 to $599.........    (NA)     (NA)     (NA)     (NA)     (NA)     (NA)     (NA)     (NA)
  $600 to $699.........    (NA)     (NA)     (NA)     (NA)     (NA)     (NA)     (NA)     (NA)
  $700 to $799.........    (NA)     (NA)     (NA)     (NA)     (NA)     (NA)     (NA)     (NA)
  $800 or more.........    (NA)     (NA)     (NA)     (NA)     (NA)     (NA)     (NA)     (NA)
Median rent
(Actual dollars).......      53       82      136      211      226      245      267      289
(2000 constant dollars)     328      342      417      441      432      441      462      479
::
Table 10.  Vacant For-Rent Units, by Selected Characteristic for the United States:
                  1960, 1970, 1975, and 1980 to 2000 - Continued

Characteristic             1985     1986     1987     1988     1989   1989/r     1990     1991

Rooms in unit, total...     100      100      100      100      100      100      100      100
  1 and 2 rooms........      16       14       13       14       13       13       13       13
  3 rooms..............      28       30       31       30       29       28       27       27
  4 rooms..............      33       34       35       35       36       37       36       36
  5 rooms or more......      23       22       21       20       23       23       24       24
  Median number or room     3.7      3.7      3.7      3.6      3.7      3.7      3.8      3.8

Bedrooms in unit, total     100      100      100      100      100      100      100      100
  No bedrooms..........      10        9        9        9        9        8        8        9
  1 bedroom............      37       38       38       38       37       36       35       35
  2 bedrooms...........      40       40       40       41       42       43       44       43
  3 bedrooms or more...      13       12       12       12       12       13       13       13

Housing units in struct     100      100      100      100      100      100      100      100
  1 unit...............      20       18       17       16       16       15       15       14
  2 units..............      12       12       11       11       11       11       11       11
  3 and 4 units........      14       14       14       14       13       13       14       13
  5 to 9 units.........      18       18       18       18       19       18       16       17
  10 units or more.....      36       39       40       42       41       39       39       41
  Mobile homes.........    (NA)     (NA)     (NA)     (NA)     (NA)        4        5        4

Duration of vacancy, to     100      100      100      100      100      100      100      100
  Less than 1 month....      33       31       29       28       30       30       31       29
  1 to 2 months........      17       16       16       16       18       18       17       17
  2 to 4 months........      18       19       20       19       19       19       17       19
  4 to 6 months........      10       11       11       10       10       10       10       10
  6 months or more.....      22       23       24       25       23       23       25       25
    6 to 12 months.....    (NA)     (NA)     (NA)       11       10       10       10       11
    1 to 2 years.......    (NA)     (NA)     (NA)        8        8        8        9        8
    2 years or more....    (NA)     (NA)     (NA)        6        5        5        6        6

Year structure built, t     100      100      100      100      100      100      100      100
  1970 or later........      42       46       46       45       43       44       43       42
  1960 to 1969.........      13       12       13       14       14       14       15       16
  1950 to 1959.........      10       11       11       10       10       10       10       10
  1940 to 1949.........       9        7        7        9        9        9        8        9
  1939 or earlier......      27       23       23       23       23       23       24       23

Monthly rent, total....     100      100      100      100      100      100      100      100
  Less than $100.......    (NA)     (NA)     (NA)     (NA)     (NA)        2        1        2
  $100 to $199.........    (NA)     (NA)     (NA)     (NA)     (NA)       12       11        8
  $200 to $249.........    (NA)     (NA)     (NA)     (NA)     (NA)       12       10        9
  $250 to $299.........    (NA)     (NA)     (NA)     (NA)     (NA)       14       12       10
  $300 to $399.........    (NA)     (NA)     (NA)     (NA)     (NA)       22       21       21
  $400 to $499.........    (NA)     (NA)     (NA)     (NA)     (NA)       14       15       17
  $500 to $599.........    (NA)     (NA)     (NA)     (NA)     (NA)        9       10       12
  $600 to $699.........    (NA)     (NA)     (NA)     (NA)     (NA)        6        7        8
  $700 to $799.........    (NA)     (NA)     (NA)     (NA)     (NA)        4        4        4
  $800 or more.........    (NA)     (NA)     (NA)     (NA)     (NA)        6        8        8
Median rent
(Actual dollars).......     305      329      330      343      358      346      371      398
(2000 constant dollars)     488      517      500      499      497      480      489      503
::
Table 10.  Vacant For-Rent Units, by Selected Characteristic for the United States:
                  1960, 1970, 1975, and 1980 to 2000 - Continued


Characteristic             1992     1993   1993/r     1994     1995     1996     1997     1998

Rooms in unit, total...     100      100      100      100      100      100      100      100
  1 and 2 rooms........      13       13       13       14       14       14       13       12
  3 rooms..............      29       26       26       26       26       24       26       24
  4 rooms..............      35       36       36       35       35       36       36       36
  5 rooms or more......      23       24       25       25       25       25       26       28
  Median number or room     3.7      3.8      3.8      3.8      3.8      3.8      3.8      3.9

Bedrooms in unit, total     100      100      100      100      100      100      100      100
  No bedrooms..........       8        8        8        4        4        4        4        3
  1 bedroom............      38       36       36       36       37       36       35       34
  2 bedrooms...........      41       42       43       45       44       46       45       46
  3 bedrooms or more...      13       13       13       15       15       14       16       17

Housing units in struct     100      100      100      100      100      100      100      100
  1 unit...............      15       15       15       17       20       19       21       22
  2 units..............      11       10       10       11       11       12       12       10
  3 and 4 units........      14       14       14       12       13       13       13       12
  5 to 9 units.........      17       18       18       16       16       15       15       16
  10 units or more.....      39       40       40       39       36       36       34       33
  Mobile homes.........       4        3        3        4        5        5        5        6

Duration of vacancy, to     100      100      100      100      100      100      100      100
  Less than 1 month....      29       28       27       31       29       29       29       29
  1 to 2 months........      16       16       16       18       19       19       19       19
  2 to 4 months........      20       20       20       18       19       19       20       19
  4 to 6 months........      10       11       11       11       11       10       10       11
  6 months or more.....      26       25       25       23       22       23       22       23
    6 to 12 months.....      12       11       11       11       11       11       11       12
    1 to 2 years.......       9        9        9        7        7        7        6        6
    2 years or more....       5        5        5        6        4        5        5        5

Year structure built, t     100      100      100      100      100      100      100      100
  1970 or later........      40       41       41       41       42       44       44       45
  1960 to 1969.........      17       16       16       16       14       14       14       14
  1950 to 1959.........      10       10       10       11       12       11       12       11
  1940 to 1949.........       9        9        9        9       10        9        9       10
  1939 or earlier......      25       24       24       23       22       23       22       20

Monthly rent, total....     100      100      100      100      100      100      100      100
  Less than $100.......       1        1        1        2        2        2        1        1
  $100 to $199.........       7        5        5        5        4        4        3        3
  $200 to $249.........       8        7        7        7        6        4        5        4
  $250 to $299.........       9       10       10        8        8        7        9        8
  $300 to $399.........      22       21       21       22       23       24       23       21
  $400 to $499.........      19       20       19       20       19       20       18       19
  $500 to $599.........      12       13       13       14       14       14       14       15
  $600 to $699.........       8        8        8        8        9        8        8       10
  $700 to $799.........       5        5        5        5        5        5        5        5
  $800 or more.........       9       10       10       10       11       12       13       13
Median rent
(Actual dollars).......     411      431      430      429      438      444      442      461
(2000 constant dollars)     504      514      512      498      495      487      474      487

Table 10.  Vacant For-Rent Units, by Selected Characteristic for the United States:
                  1960, 1970, 1975, and 1980 to 2000 - Continued


Characteristic             1999     2000

Rooms in unit, total...     100      100
  1 and 2 rooms........      13       11
  3 rooms..............      24       25
  4 rooms..............      36       36
  5 rooms or more......      28       28
  Median number or room     3.9      3.9

Bedrooms in unit, total     100      100
  No bedrooms..........       4        3
  1 bedroom............      34       33
  2 bedrooms...........      46       47
  3 bedrooms or more...      16       17

Housing units in struct     100      100
  1 unit...............      26       26
  2 units..............      10        8
  3 and 4 units........      13       12
  5 to 9 units.........      17       16
  10 units or more.....      28       33
  Mobile homes.........       6        6

Duration of vacancy, to     100      100
  Less than 1 month....      27       28
  1 to 2 months........      19       20
  2 to 4 months........      20       19
  4 to 6 months........      10       11
  6 months or more.....      24       23
    6 to 12 months.....      11       12
    1 to 2 years.......       7        6
    2 years or more....       5        6

Year structure built, t     100      100
  1970 or later........      47       49
  1960 to 1969.........      14       15
  1950 to 1959.........      10       11
  1940 to 1949.........       9        9
  1939 or earlier......      19       17

Monthly rent, total....     100      100
  Less than $100.......       1        1
  $100 to $199.........       3        3
  $200 to $249.........       4        4
  $250 to $299.........       7        7
  $300 to $399.........      24       22
  $400 to $499.........      19       17
  $500 to $599.........      13       14
  $600 to $699.........       9        9
  $700 to $799.........       6        7
  $800 or more.........      15       17
Median rent
(Actual dollars).......     461      483
(2000 constant dollars)     476      483

/r Revised.  NA  Not Available.
/1 Excludes one-family homes on 10 acres or more.