Frequencies for first 10,000 rows of rx2v1c3 variable in nhamcsed2014 dataset :

   For RX2, |
 level 1 of |
MULTUM drug |
category #3 |
     (broad |
     level) |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,789       97.89       97.89
        040 |         19        0.19       98.08
        057 |        189        1.89       99.97
        105 |          1        0.01       99.98
        113 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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