Frequencies for first 10,000 rows of eniflag6 variable in mort1975 dataset :

   eniflag6 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        913        9.13        9.13
          1 |         17        0.17        9.30
          . |      9,070       90.70      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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