Frequencies for first 10,000 rows of rx4v2c3 variable in nhamcsopd2011 dataset :

   For RX4, |
 level 2 of |
MULTUM drug |
category #3 |
(intermedia |
  te level) |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,966       99.66       99.66
        064 |         12        0.12       99.78
        065 |         14        0.14       99.92
        101 |          3        0.03       99.95
        270 |          3        0.03       99.98
        433 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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