Frequencies for first 10,000 rows of lfdyr variable in natl1982 dataset :

    Date of |
 Last Fetal |
    Death - |
       Year |      Freq.     Percent        Cum.
------------+-----------------------------------
         52 |          1        0.01        0.01
         57 |          1        0.01        0.02
         58 |          1        0.01        0.03
         59 |          1        0.01        0.04
         61 |          1        0.01        0.05
         62 |          1        0.01        0.06
         63 |          2        0.02        0.08
         64 |          5        0.05        0.13
         65 |          3        0.03        0.16
         66 |          4        0.04        0.20
         67 |          9        0.09        0.29
         68 |          9        0.09        0.38
         69 |         11        0.11        0.49
         70 |         26        0.26        0.75
         71 |         20        0.20        0.95
         72 |         37        0.37        1.32
         73 |         52        0.52        1.84
         74 |         58        0.58        2.42
         75 |         81        0.81        3.23
         76 |        110        1.10        4.33
         77 |      8,406       84.06       88.39
         78 |        184        1.84       90.23
         79 |        238        2.38       92.61
         80 |        398        3.98       96.59
         81 |        225        2.25       98.84
         82 |          3        0.03       98.87
         99 |        113        1.13      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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