Frequencies for first 10,000 rows of rnifla_9 variable in mort1975 dataset :

   rnifla_9 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |         36        0.36        0.36
          1 |          4        0.04        0.40
          . |      9,960       99.60      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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