Frequencies for first 10,000 rows of comstat6 variable in nhamcsopd1997 dataset :

composition |
status code |
        for |
 medication |
         #6 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        338        3.38        3.38
          2 |         32        0.32        3.70
          3 |         16        0.16        3.86
          . |      9,614       96.14      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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