Frequencies for first 10,000 rows of rx2v3c3 variable in nhamcsed2011 dataset :

   For RX2, |
 level 3 of |
MULTUM drug |
category #3 |
  (detailed |
     level) |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,807       98.07       98.07
        185 |          1        0.01       98.08
        197 |        110        1.10       99.18
        203 |         77        0.77       99.95
        204 |          5        0.05      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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