Frequencies for first 10,000 rows of llbyr variable in natl1990 dataset :

    Year of |
  Last Live |
      Birth |      Freq.     Percent        Cum.
------------+-----------------------------------
       1966 |          1        0.01        0.01
       1968 |          2        0.02        0.03
       1969 |          5        0.05        0.08
       1970 |          7        0.07        0.15
       1971 |          6        0.06        0.21
       1972 |          8        0.08        0.29
       1973 |         13        0.13        0.42
       1974 |         23        0.23        0.65
       1975 |         28        0.28        0.93
       1976 |         31        0.31        1.24
       1977 |         44        0.44        1.68
       1978 |         61        0.61        2.29
       1979 |         82        0.82        3.11
       1980 |        119        1.19        4.30
       1981 |        133        1.33        5.63
       1982 |        208        2.08        7.71
       1983 |        257        2.57       10.28
       1984 |        343        3.43       13.71
       1985 |        545        5.45       19.16
       1986 |        757        7.57       26.73
       1987 |      1,120       11.20       37.93
       1988 |      1,448       14.48       52.41
       1989 |        254        2.54       54.95
       1990 |        107        1.07       56.02
       7777 |      4,318       43.18       99.20
       9999 |         80        0.80      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 3 Jan 2016