Frequencies for first 10,000 rows of rx1v1c3 variable in nhamcsopd2011 dataset :

   For RX1, |
 level 1 of |
MULTUM drug |
category #3 |
     (broad |
     level) |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,894       98.94       98.94
        040 |         10        0.10       99.04
        057 |         54        0.54       99.58
        097 |         36        0.36       99.94
        105 |          4        0.04       99.98
        254 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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