Frequencies for first 10,000 rows of rx2cat3 variable in nhamcsed2008 dataset :

   for rx2, |
multum drug |
category #3 |
 - detailed |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,839       98.39       98.39
        140 |          1        0.01       98.40
        185 |          4        0.04       98.44
        197 |         87        0.87       99.31
        203 |         64        0.64       99.95
        204 |          2        0.02       99.97
        265 |          2        0.02       99.99
        374 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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