Frequencies for first 10,000 rows of rx1v2c3 variable in namcs2012 dataset :

   For RX1, |
 level 2 of |
MULTUM drug |
category #3 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,921       99.21       99.21
        064 |         29        0.29       99.50
        065 |         11        0.11       99.61
        101 |         15        0.15       99.76
        136 |          2        0.02       99.78
        265 |          3        0.03       99.81
        270 |          7        0.07       99.88
        433 |         12        0.12      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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