Frequencies for first 10,000 rows of rx4cat3 variable in nhamcsed2013 dataset :

   For RX4, |
MULTUM drug |
category #3 |
     - most |
   detailed |
 level (can |
  be either |
 Level 1,2  |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,921       99.21       99.21
        185 |          1        0.01       99.22
        197 |         40        0.40       99.62
        203 |         21        0.21       99.83
        204 |         10        0.10       99.93
        265 |          1        0.01       99.94
        433 |          6        0.06      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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