Frequencies for first 10,000 rows of rx2cat3 variable in nhamcsed2015 dataset :

   For RX2, |
MULTUM drug |
category #3 |
     - most |
   detailed |
 level (can |
  be either |
 Level 1,2  |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,811       98.11       98.11
        197 |         84        0.84       98.95
        203 |         74        0.74       99.69
        204 |          8        0.08       99.77
        265 |          2        0.02       99.79
        430 |          4        0.04       99.83
        433 |         17        0.17      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 20 Nov 2017