Frequencies for first 10,000 rows of rx1v1c3 variable in namcs2010 dataset :

   for rx1, |
 level 1 of |
multum drug |
category #3 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,919       99.19       99.19
        040 |         14        0.14       99.33
        057 |         51        0.51       99.84
        097 |         11        0.11       99.95
        105 |          5        0.05      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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