Frequencies for first 10,000 rows of rx3v3c3 variable in namcs2007 dataset :

   for rx3, |
 level 3 of |
multum drug |
category #3 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,968       99.68       99.68
        185 |          4        0.04       99.72
        197 |          8        0.08       99.80
        203 |         19        0.19       99.99
        204 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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