Frequencies for first 10,000 rows of rx5v3c3 variable in nhamcsed2009 dataset :

   for rx5, |
 level 3 of |
multum drug |
category #3 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,968       99.68       99.68
        185 |          1        0.01       99.69
        197 |         12        0.12       99.81
        203 |         16        0.16       99.97
        204 |          3        0.03      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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