Frequencies for first 10,000 rows of rx4v2c3 variable in nhamcsed2013 dataset :

   For RX4, |
 level 2 of |
MULTUM drug |
category #3 |
(intermedia |
  te level) |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,921       99.21       99.21
        064 |         31        0.31       99.52
        065 |         40        0.40       99.92
        101 |          1        0.01       99.93
        265 |          1        0.01       99.94
        433 |          6        0.06      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 7 Nov 2016