Frequencies for first 10,000 rows of rx1v1c3 variable in nhamcsed2014 dataset :

   For RX1, |
 level 1 of |
MULTUM drug |
category #3 |
     (broad |
     level) |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,746       97.46       97.46
        040 |         17        0.17       97.63
        057 |        233        2.33       99.96
        097 |          3        0.03       99.99
        113 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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