Frequencies for first 10,000 rows of rx5v3c4 variable in namcs2012 dataset :

   For RX5, |
 level 3 of |
MULTUM drug |
category #4 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,990       99.90       99.90
        205 |          6        0.06       99.96
        445 |          4        0.04      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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