Frequencies for first 10,000 rows of mage8 variable in natl2000 dataset :

     Age of |
     Mother |
   recode 8 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |         38        0.38        0.38
          2 |      1,594       15.94       16.32
          3 |      3,114       31.14       47.46
          4 |      2,745       27.45       74.91
          5 |      1,631       16.31       91.22
          6 |        729        7.29       98.51
          7 |        142        1.42       99.93
          8 |          7        0.07      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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