Frequencies for first 10,000 rows of rx6v3c3 variable in namcs2011 dataset :

   For RX6, |
 level 3 of |
MULTUM drug |
category #3 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,989       99.89       99.89
        197 |          5        0.05       99.94
        203 |          6        0.06      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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