Frequencies for first 10,000 rows of mager14 variable in natlterr2003 dataset :

   Mother's |
 Age Recode |
     14 U;R |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |         41        0.41        0.41
          3 |        131        1.31        1.72
          4 |        248        2.48        4.20
          5 |        352        3.52        7.72
          6 |        454        4.54       12.26
          7 |        567        5.67       17.93
          8 |      3,281       32.81       50.74
          9 |      2,513       25.13       75.87
         10 |      1,640       16.40       92.27
         11 |        650        6.50       98.77
         12 |        113        1.13       99.90
         13 |         10        0.10      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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