Frequencies for first 10,000 rows of rx1v1c3 variable in namcs2012 dataset :

   For RX1, |
 level 1 of |
MULTUM drug |
category #3 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,921       99.21       99.21
        040 |         12        0.12       99.33
        057 |         40        0.40       99.73
        097 |         15        0.15       99.88
        105 |          7        0.07       99.95
        113 |          3        0.03       99.98
        133 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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