Frequencies for first 10,000 rows of rx2v2c3 variable in namcs2012 dataset :

   For RX2, |
 level 2 of |
MULTUM drug |
category #3 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,933       99.33       99.33
        064 |         25        0.25       99.58
        065 |         16        0.16       99.74
        101 |          7        0.07       99.81
        265 |          2        0.02       99.83
        270 |          3        0.03       99.86
        433 |         14        0.14      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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