Frequencies for first 10,000 rows of rx6v3c3 variable in nhamcsed2012 dataset :

   For RX6, |
 level 3 of |
MULTUM drug |
category #3 |
  (detailed |
     level) |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,981       99.81       99.81
        197 |          7        0.07       99.88
        203 |         10        0.10       99.98
        204 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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