Frequencies for first 10,000 rows of rx2cat3 variable in nhamcsed2012 dataset :

   For RX2, |
MULTUM drug |
category #3 |
     - most |
   detailed |
 level (can |
  be either |
 Level 1,2  |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,818       98.18       98.18
        185 |          2        0.02       98.20
        197 |         81        0.81       99.01
        203 |         75        0.75       99.76
        204 |          9        0.09       99.85
        265 |          1        0.01       99.86
        430 |          2        0.02       99.88
        433 |         12        0.12      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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