Frequencies for first 10,000 rows of rx4v2c3 variable in namcs2015 dataset :

   For RX4, |
 level 2 of |
MULTUM drug |
category #3 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,955       99.55       99.55
        064 |         13        0.13       99.68
        065 |         12        0.12       99.80
        101 |          1        0.01       99.81
        265 |          4        0.04       99.85
        270 |          3        0.03       99.88
        430 |          3        0.03       99.91
        433 |          9        0.09      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 25 Oct 2017