Frequencies for first 10,000 rows of rx2v3c3 variable in nhamcsed2014 dataset :

   For RX2, |
 level 3 of |
MULTUM drug |
category #3 |
  (detailed |
     level) |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,811       98.11       98.11
        197 |        104        1.04       99.15
        203 |         75        0.75       99.90
        204 |         10        0.10      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 11 Apr 2017