Frequencies for first 10,000 rows of rx1cat3 variable in nhamcsopd2011 dataset :

   For RX1, |
MULTUM drug |
category #3 |
     - most |
   detailed |
 level (can |
  be either |
 Level 1,2  |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,894       98.94       98.94
        185 |         36        0.36       99.30
        197 |         13        0.13       99.43
        203 |         41        0.41       99.84
        270 |          4        0.04       99.88
        433 |         10        0.10       99.98
        440 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 28 Mar 2016