Frequencies for first 10,000 rows of dmar variable in natl1989 dataset :

    Marital |
  Status of |
     Mother |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      6,987       69.87       69.87
          2 |      3,013       30.13      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 3 Jan 2016