Frequencies for first 10,000 rows of paywkcmp variable in nhamcsopd2008 dataset :

   expected |
  source of |
   payment: |
    workers |
compensatio |
          n |      Freq.     Percent        Cum.
------------+-----------------------------------
         no |      9,890       98.90       98.90
        yes |        110        1.10      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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