Frequencies for first 10,000 rows of mager9 variable in natlterr2003 dataset :

   Mother's |
 Age Recode |
      9 U;R |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |         41        0.41        0.41
          2 |      1,752       17.52       17.93
          3 |      3,281       32.81       50.74
          4 |      2,513       25.13       75.87
          5 |      1,640       16.40       92.27
          6 |        650        6.50       98.77
          7 |        113        1.13       99.90
          8 |         10        0.10      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 22 Dec 2015