Frequencies for first 10,000 rows of rx11cat3 variable in nhamcsed2015 dataset 

  For RX11, |
MULTUM drug |
category #3 |
     - most |
   detailed |
 level (can |
  be either |
  Level 1,2 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,994       99.94       99.94
        203 |          5        0.05       99.99
        374 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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