Frequencies for first 10,000 rows of rx2v3c3 variable in nhamcsed2015 dataset :

   For RX2, |
 level 3 of |
MULTUM drug |
category #3 |
  (detailed |
     level) |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,834       98.34       98.34
        197 |         84        0.84       99.18
        203 |         74        0.74       99.92
        204 |          8        0.08      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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