Frequencies for first 10,000 rows of rx5cat3 variable in namcs2008 dataset :

   for rx5, |
multum drug |
category #3 |
 - detailed |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,980       99.80       99.80
        185 |          4        0.04       99.84
        197 |          2        0.02       99.86
        203 |         14        0.14      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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