Frequencies for first 10,000 rows of mage6 variable in natl1986 dataset :

     Age of |
     Mother |
   recode 6 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,886       18.86       18.86
          2 |      3,290       32.90       51.76
          3 |      2,820       28.20       79.96
          4 |      1,502       15.02       94.98
          5 |        443        4.43       99.41
          6 |         59        0.59      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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