Frequencies for first 10,000 rows of rx2cat3 variable in nhamcsopd2011 dataset :

   For RX2, |
MULTUM drug |
category #3 |
     - most |
   detailed |
 level (can |
  be either |
 Level 1,2  |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,897       98.97       98.97
        185 |          6        0.06       99.03
        197 |         25        0.25       99.28
        203 |         57        0.57       99.85
        204 |          1        0.01       99.86
        270 |          8        0.08       99.94
        430 |          2        0.02       99.96
        433 |          4        0.04      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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