Frequencies for first 10,000 rows of rx1v3c3 variable in nhamcsed2013 dataset :

   For RX1, |
 level 3 of |
MULTUM drug |
category #3 |
  (detailed |
     level) |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,719       97.19       97.19
        197 |        152        1.52       98.71
        203 |        124        1.24       99.95
        204 |          5        0.05      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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