Frequencies for first 10,000 rows of comstat4 variable in nhamcsopd1995 dataset :

composition |
status code |
        for |
 medication |
         #4 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        947        9.47        9.47
          2 |        105        1.05       10.52
          3 |         40        0.40       10.92
          . |      8,908       89.08      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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