Frequencies for first 10,000 rows of mager14 variable in natlterr2008 dataset :

   Mother's |
 Age Recode |
     14 U;R |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |         19        0.19        0.19
          3 |         58        0.58        0.77
          4 |        147        1.47        2.24
          5 |        273        2.73        4.97
          6 |        381        3.81        8.78
          7 |        479        4.79       13.57
          8 |      2,765       27.65       41.22
          9 |      2,644       26.44       67.66
         10 |      1,962       19.62       87.28
         11 |      1,019       10.19       97.47
         12 |        240        2.40       99.87
         13 |         11        0.11       99.98
         14 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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