Frequencies for first 10,000 rows of comstat5 variable in nhamcsopd2001 dataset :

composition |
status code |
        for |
 medication |
         #5 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        865        8.65        8.65
          2 |         99        0.99        9.64
          3 |         50        0.50       10.14
          . |      8,986       89.86      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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