Frequencies for first 10,000 rows of rx7cat3 variable in nhamcsed2014 dataset :

   For RX7, |
MULTUM drug |
category #3 |
     - most |
   detailed |
 level (can |
  be either |
 Level 1,2  |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,982       99.82       99.82
        197 |          8        0.08       99.90
        203 |          7        0.07       99.97
        204 |          2        0.02       99.99
        265 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 11 Apr 2017