Frequencies for first 10,000 rows of rx7cat3 variable in nhamcsed2015 dataset :

   For RX7, |
MULTUM drug |
category #3 |
     - most |
   detailed |
 level (can |
  be either |
 Level 1,2  |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,980       99.80       99.80
        197 |          6        0.06       99.86
        203 |         11        0.11       99.97
        270 |          1        0.01       99.98
        433 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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