Frequencies for first 10,000 rows of rx7v3c3 variable in nhamcsed2013 dataset :

   For RX7, |
 level 3 of |
MULTUM drug |
category #3 |
  (detailed |
     level) |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,982       99.82       99.82
        185 |          1        0.01       99.83
        197 |          9        0.09       99.92
        203 |          5        0.05       99.97
        204 |          3        0.03      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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