Frequencies for first 10,000 rows of rx1v3c3 variable in namcs2011 dataset :

   For RX1, |
 level 3 of |
MULTUM drug |
category #3 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,926       99.26       99.26
        185 |         10        0.10       99.36
        197 |         40        0.40       99.76
        203 |         24        0.24      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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