Frequencies for first 10,000 rows of rx5v2c3 variable in nhamcsed2009 dataset :

   for rx5, |
 level 2 of |
multum drug |
category #3 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,967       99.67       99.67
        064 |         19        0.19       99.86
        065 |         12        0.12       99.98
        101 |          1        0.01       99.99
        265 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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