Frequencies for first 10,000 rows of rx28v2c4 variable in nhamcsed2015 dataset 

  For RX28, |
 level 2 of |
MULTUM drug |
category #4 |
(intermedia |
  te level) |      Freq.     Percent        Cum.
------------+-----------------------------------
            |     10,000      100.00      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 20 Nov 2017