Frequencies for first 10,000 rows of rx2v3c3 variable in nhamcsed2013 dataset :

   For RX2, |
 level 3 of |
MULTUM drug |
category #3 |
  (detailed |
     level) |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,795       97.95       97.95
        185 |          2        0.02       97.97
        197 |        111        1.11       99.08
        203 |         87        0.87       99.95
        204 |          5        0.05      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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