Frequencies for first 10,000 rows of rx3v1c3 variable in nhamcsed2010 dataset :

   For RX3, |
 level 1 of |
MULTUM drug |
category #3 |
     (broad |
     level) |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,867       98.67       98.67
        040 |         14        0.14       98.81
        057 |        114        1.14       99.95
        097 |          2        0.02       99.97
        113 |          2        0.02       99.99
        331 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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