Frequencies for first 10,000 rows of mager8 variable in linkco1991us_num dataset :

     Age of |
     Mother |
   Recode 8 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |         71        0.71        0.71
          2 |      1,779       17.79       18.50
          3 |      2,879       28.79       47.29
          4 |      2,448       24.48       71.77
          5 |      1,858       18.58       90.35
          6 |        828        8.28       98.63
          7 |        131        1.31       99.94
          8 |          6        0.06      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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