Frequencies for first 10,000 rows of rx6v1c3 variable in nhamcsed2010 dataset :

   For RX6, |
 level 1 of |
MULTUM drug |
category #3 |
     (broad |
     level) |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,975       99.75       99.75
        040 |          4        0.04       99.79
        057 |         17        0.17       99.96
        097 |          1        0.01       99.97
        113 |          3        0.03      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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