Frequencies for first 10,000 rows of rx8v2c4 variable in namcs2015 dataset :

   For RX8, |
 level 2 of |
MULTUM drug |
category #4 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,994       99.94       99.94
        066 |          4        0.04       99.98
        104 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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