Frequencies for first 10,000 rows of rx3v1c3 variable in nhamcsed2015 dataset :

   For RX3, |
 level 1 of |
MULTUM drug |
category #3 |
     (broad |
     level) |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,853       98.53       98.53
        040 |         14        0.14       98.67
        057 |        129        1.29       99.96
        105 |          2        0.02       99.98
        113 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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