Frequencies for first 10,000 rows of rx3v2c3 variable in nhamcsed2008 dataset :

   for rx3, |
 level 2 of |
multum drug |
category #3 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,912       99.12       99.12
        064 |         38        0.38       99.50
        065 |         47        0.47       99.97
        101 |          1        0.01       99.98
        113 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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