Frequencies for first 10,000 rows of workcomp variable in nhamcsopd1996 dataset :

   worker's |
compensatio |
          n |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,930       99.30       99.30
          1 |         70        0.70      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 28 Mar 2016