Frequencies for first 10,000 rows of rx9v2c4 variable in nhamcsed2014 dataset :

   For RX9, |
 level 2 of |
MULTUM drug |
category #4 |
(intermedia |
  te level) |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,996       99.96       99.96
        066 |          4        0.04      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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