Frequencies for first 10,000 rows of rx3v3c3 variable in namcs2011 dataset :

   For RX3, |
 level 3 of |
MULTUM drug |
category #3 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,956       99.56       99.56
        197 |         16        0.16       99.72
        203 |         27        0.27       99.99
        204 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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