Frequencies for first 10,000 rows of rx2v1c3 variable in namcs2015 dataset :

   For RX2, |
 level 1 of |
MULTUM drug |
category #3 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,909       99.09       99.09
        040 |         28        0.28       99.37
        057 |         51        0.51       99.88
        097 |          8        0.08       99.96
        105 |          3        0.03       99.99
        113 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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