Frequencies for first 10,000 rows of rx2v1c3 variable in namcs2008 dataset :

   for rx2, |
 level 1 of |
multum drug |
category #3 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,935       99.35       99.35
        057 |         57        0.57       99.92
        097 |          2        0.02       99.94
        105 |          6        0.06      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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