Frequencies for first 10,000 rows of rx1v2c3 variable in namcs2010 dataset :

   for rx1, |
 level 2 of |
multum drug |
category #3 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,919       99.19       99.19
        064 |         27        0.27       99.46
        065 |         24        0.24       99.70
        101 |         11        0.11       99.81
        270 |          5        0.05       99.86
        433 |         14        0.14      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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