Frequencies for first 10,000 rows of rnifla_3 variable in mort1975 dataset :

   rnifla_3 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      6,461       64.61       64.61
          1 |         94        0.94       65.55
          . |      3,445       34.45      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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