Frequencies for first 10,000 rows of rx19cat2 variable in nhamcsed2015 dataset 

  For RX19, |
MULTUM drug |
category #2 |
     - most |
   detailed |
 level (can |
  be either |
  Level 1,2 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,993       99.93       99.93
        123 |          2        0.02       99.95
        129 |          4        0.04       99.99
        460 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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