Frequencies for first 10,000 rows of rx6v3c4 variable in nhamcsed2013 dataset :

   For RX6, |
 level 3 of |
MULTUM drug |
category #4 |
  (detailed |
     level) |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,984       99.84       99.84
        205 |         16        0.16      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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