Frequencies for first 10,000 rows of rx2cat3 variable in namcs2011 dataset :

   For RX2, |
MULTUM drug |
category #3 |
     - most |
   detailed |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,928       99.28       99.28
        185 |          8        0.08       99.36
        197 |         28        0.28       99.64
        203 |         20        0.20       99.84
        204 |          1        0.01       99.85
        270 |          4        0.04       99.89
        433 |         11        0.11      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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