Frequencies for first 10,000 rows of llbyr variable in natl1980 dataset :

    Year of |
  Last Live |
      Birth |      Freq.     Percent        Cum.
------------+-----------------------------------
         53 |          1        0.01        0.01
         60 |          1        0.01        0.02
         61 |          8        0.08        0.10
         62 |          3        0.03        0.13
         63 |          7        0.07        0.20
         64 |         14        0.14        0.34
         65 |         22        0.22        0.56
         66 |         26        0.26        0.82
         67 |         41        0.41        1.23
         68 |         61        0.61        1.84
         69 |         69        0.69        2.53
         70 |        117        1.17        3.70
         71 |        166        1.66        5.36
         72 |        230        2.30        7.66
         73 |        276        2.76       10.42
         74 |        399        3.99       14.41
         75 |        583        5.83       20.24
         76 |        782        7.82       28.06
         77 |      5,446       54.46       82.52
         78 |      1,348       13.48       96.00
         79 |        237        2.37       98.37
         80 |         92        0.92       99.29
         99 |         71        0.71      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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