Frequencies for first 10,000 rows of rx9v3c3 variable in namcs2013 dataset :

   For RX9, |
 level 3 of |
MULTUM drug |
category #3 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,992       99.92       99.92
        185 |          1        0.01       99.93
        203 |          7        0.07      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 27 Mar 2017