Frequencies for first 10,000 rows of llbyr variable in natl1983 dataset :

    Year of |
  Last Live |
      Birth |      Freq.     Percent        Cum.
------------+-----------------------------------
         60 |          1        0.01        0.01
         61 |          1        0.01        0.02
         62 |          2        0.02        0.04
         64 |          1        0.01        0.05
         65 |          7        0.07        0.12
         66 |         10        0.10        0.22
         67 |         11        0.11        0.33
         68 |         19        0.19        0.52
         69 |         22        0.22        0.74
         70 |         39        0.39        1.13
         71 |         61        0.61        1.74
         72 |         79        0.79        2.53
         73 |        115        1.15        3.68
         74 |        157        1.57        5.25
         75 |        191        1.91        7.16
         76 |        253        2.53        9.69
         77 |      4,713       47.13       56.82
         78 |        556        5.56       62.38
         79 |        842        8.42       70.80
         80 |      1,189       11.89       82.69
         81 |      1,366       13.66       96.35
         82 |        231        2.31       98.66
         83 |        110        1.10       99.76
         99 |         24        0.24      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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