Frequencies for first 10,000 rows of comstat5 variable in nhamcsopd1999 dataset :

composition |
status code |
        for |
 medication |
         #5 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        673        6.73        6.73
          2 |         58        0.58        7.31
          3 |         24        0.24        7.55
          . |      9,245       92.45      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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