Frequencies for first 10,000 rows of dmar variable in natl1979 dataset :

    Marital |
     Status |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      7,779       77.79       77.79
          2 |      2,221       22.21      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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