Frequencies for first 10,000 rows of comstat5 variable in nhamcsopd1998 dataset :

composition |
status code |
        for |
 medication |
         #5 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        600        6.00        6.00
          2 |         74        0.74        6.74
          3 |         16        0.16        6.90
          . |      9,310       93.10      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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