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

   Reported |
     Age of |
     Father |      Freq.     Percent        Cum.
------------+-----------------------------------
         19 |          1        0.01        0.01
         22 |          1        0.01        0.02
         26 |          1        0.01        0.03
         27 |          1        0.01        0.04
         31 |          2        0.02        0.06
         32 |          2        0.02        0.08
         34 |          1        0.01        0.09
         37 |          2        0.02        0.11
         42 |          1        0.01        0.12
         99 |      9,988       99.88      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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