Frequencies for first 10,000 rows of rx7cat3 variable in nhamcsed2012 dataset :

   For RX7, |
MULTUM drug |
category #3 |
     - most |
   detailed |
 level (can |
  be either |
 Level 1,2  |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,988       99.88       99.88
        197 |          1        0.01       99.89
        203 |          8        0.08       99.97
        265 |          1        0.01       99.98
        430 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 7 Nov 2016