Frequencies for first 10,000 rows of mager9 variable in natl2011 dataset :

   Mother's |
 Age Recode |
      9 U;R |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |          6        0.06        0.06
          2 |        777        7.77        7.83
          3 |      2,828       28.28       36.11
          4 |      3,023       30.23       66.34
          5 |      2,152       21.52       87.86
          6 |        976        9.76       97.62
          7 |        225        2.25       99.87
          8 |         13        0.13      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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