Frequencies for first 10,000 rows of rx3v1c4 variable in nhamcsed2015 dataset :

   For RX3, |
 level 1 of |
MULTUM drug |
category #4 |
     (broad |
     level) |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,924       99.24       99.24
        057 |         74        0.74       99.98
        254 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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