Frequencies for first 10,000 rows of rx2v1c3 variable in nhamcsed2010 dataset :

   For RX2, |
 level 1 of |
MULTUM drug |
category #3 |
     (broad |
     level) |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,816       98.16       98.16
        040 |         21        0.21       98.37
        057 |        162        1.62       99.99
        113 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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