Frequencies for first 10,000 rows of fage11 variable in natl1977 dataset :

     Age of |
     Father |
     Recode |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |          1        0.01        0.01
          2 |        431        4.31        4.32
          3 |      2,416       24.16       28.48
          4 |      2,739       27.39       55.87
          5 |      1,411       14.11       69.98
          6 |        533        5.33       75.31
          7 |        185        1.85       77.16
          8 |         87        0.87       78.03
          9 |         36        0.36       78.39
         10 |         25        0.25       78.64
         11 |      2,136       21.36      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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