Frequencies for first 10,000 rows of dfagerpt variable in natl1989 dataset :

   Reported |
     Age of |
     Father |      Freq.     Percent        Cum.
------------+-----------------------------------
         20 |          3        0.03        0.03
         21 |          1        0.01        0.04
         22 |          1        0.01        0.05
         24 |          4        0.04        0.09
         29 |          2        0.02        0.11
         32 |          1        0.01        0.12
         38 |          1        0.01        0.13
         45 |          1        0.01        0.14
         56 |          1        0.01        0.15
         99 |      9,985       99.85      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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