Frequencies for first 10,000 rows of mage8 variable in natl1995 dataset :

     Age of |
     Mother |
   recode 8 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |         55        0.55        0.55
          2 |      1,807       18.07       18.62
          3 |      3,041       30.41       49.03
          4 |      2,641       26.41       75.44
          5 |      1,740       17.40       92.84
          6 |        608        6.08       98.92
          7 |        102        1.02       99.94
          8 |          6        0.06      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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