Frequencies for first 10,000 rows of rx5v3c3 variable in nhamcsopd2007 dataset :

   for rx5, |
 level 3 of |
multum drug |
category #3 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,976       99.76       99.76
        185 |          2        0.02       99.78
        197 |          7        0.07       99.85
        203 |         15        0.15      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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