Frequencies for first 10,000 rows of rx3v2c4 variable in nhamcsed2008 dataset :

   for rx3, |
 level 2 of |
multum drug |
category #4 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,953       99.53       99.53
        066 |         47        0.47      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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