Frequencies for first 10,000 rows of rx7v2c3 variable in namcs2015 dataset :

   For RX7, |
 level 2 of |
MULTUM drug |
category #3 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,977       99.77       99.77
        064 |          7        0.07       99.84
        065 |          9        0.09       99.93
        265 |          1        0.01       99.94
        270 |          4        0.04       99.98
        433 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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