Frequencies for first 10,000 rows of fage11 variable in natl1981 dataset :

     Age of |
     Father |
     Recode |      Freq.     Percent        Cum.
------------+-----------------------------------
          2 |        281        2.81        2.81
          3 |      2,175       21.75       24.56
          4 |      2,647       26.47       51.03
          5 |      1,690       16.90       67.93
          6 |        600        6.00       73.93
          7 |        186        1.86       75.79
          8 |         75        0.75       76.54
          9 |         19        0.19       76.73
         10 |         20        0.20       76.93
         11 |      2,307       23.07      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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