Frequencies for first 10,000 rows of mager9 variable in natl2003 dataset :

   Mother's |
 Age Recode |
      9 U;R |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |         16        0.16        0.16
          2 |      1,049       10.49       10.65
          3 |      2,890       28.90       39.55
          4 |      2,644       26.44       65.99
          5 |      2,055       20.55       86.54
          6 |      1,031       10.31       96.85
          7 |        293        2.93       99.78
          8 |         22        0.22      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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