Frequencies for first 10,000 rows of rx7v3c3 variable in nhamcsed2014 dataset :

   For RX7, |
 level 3 of |
MULTUM drug |
category #3 |
  (detailed |
     level) |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,983       99.83       99.83
        197 |          8        0.08       99.91
        203 |          7        0.07       99.98
        204 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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