Frequencies for first 10,000 rows of rx1v2c3 variable in namcs2011 dataset :

   For RX1, |
 level 2 of |
MULTUM drug |
category #3 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,900       99.00       99.00
        064 |         24        0.24       99.24
        065 |         40        0.40       99.64
        101 |         10        0.10       99.74
        265 |          2        0.02       99.76
        270 |          3        0.03       99.79
        433 |         21        0.21      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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