Frequencies for first 10,000 rows of lfdyr variable in natl1987 dataset :

    Date of |
 Last Fetal |
    Death - |
       Year |      Freq.     Percent        Cum.
------------+-----------------------------------
         19 |          1        0.01        0.01
         60 |          1        0.01        0.02
         61 |          1        0.01        0.03
         65 |          1        0.01        0.04
         66 |          1        0.01        0.05
         67 |          1        0.01        0.06
         68 |          4        0.04        0.10
         69 |          2        0.02        0.12
         70 |          5        0.05        0.17
         71 |          3        0.03        0.20
         72 |         12        0.12        0.32
         73 |         12        0.12        0.44
         74 |         12        0.12        0.56
         75 |         18        0.18        0.74
         76 |         36        0.36        1.10
         77 |      8,240       82.40       83.50
         78 |         55        0.55       84.05
         79 |         70        0.70       84.75
         80 |         84        0.84       85.59
         81 |         84        0.84       86.43
         82 |        110        1.10       87.53
         83 |        195        1.95       89.48
         84 |        211        2.11       91.59
         85 |        443        4.43       96.02
         86 |        271        2.71       98.73
         87 |          1        0.01       98.74
         99 |        126        1.26      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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