Frequencies for first 10,000 rows of mager14 variable in natl2005 dataset :

   Mother's |
 Age Recode |
     14 U;R |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |         12        0.12        0.12
          3 |         32        0.32        0.44
          4 |         75        0.75        1.19
          5 |        171        1.71        2.90
          6 |        254        2.54        5.44
          7 |        458        4.58       10.02
          8 |      2,914       29.14       39.16
          9 |      2,783       27.83       66.99
         10 |      1,978       19.78       86.77
         11 |      1,011       10.11       96.88
         12 |        293        2.93       99.81
         13 |         19        0.19      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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