Frequencies for first 10,000 rows of mager9 variable in natlterr2011 dataset :

   Mother's |
 Age Recode |
      9 U;R |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |         23        0.23        0.23
          2 |      1,395       13.95       14.18
          3 |      2,942       29.42       43.60
          4 |      2,523       25.23       68.83
          5 |      1,866       18.66       87.49
          6 |        981        9.81       97.30
          7 |        249        2.49       99.79
          8 |         21        0.21      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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