Frequencies for first 10,000 rows of rx1v1c3 variable in nhamcsed2011 dataset :

   For RX1, |
 level 1 of |
MULTUM drug |
category #3 |
     (broad |
     level) |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,738       97.38       97.38
        040 |         23        0.23       97.61
        057 |        230        2.30       99.91
        097 |          4        0.04       99.95
        105 |          2        0.02       99.97
        113 |          3        0.03      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 28 Mar 2016