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

    Marital |
  Status of |
     Mother |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      4,668       46.68       46.68
          2 |      5,332       53.32      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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