Frequencies for first 10,000 rows of rx3cat3 variable in namcs2009 dataset :

   for rx3, |
multum drug |
category #3 |
 - detailed |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,964       99.64       99.64
        185 |          4        0.04       99.68
        197 |          9        0.09       99.77
        203 |         20        0.20       99.97
        265 |          1        0.01       99.98
        270 |          1        0.01       99.99
        287 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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