Frequencies for first 10,000 rows of rx3v1c3 variable in namcs2009 dataset :

   for rx3, |
 level 1 of |
multum drug |
category #3 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,964       99.64       99.64
        057 |         29        0.29       99.93
        097 |          4        0.04       99.97
        105 |          1        0.01       99.98
        113 |          1        0.01       99.99
        133 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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