Frequencies for first 10,000 rows of rx3v1c3 variable in namcs2013 dataset :

   For RX3, |
 level 1 of |
MULTUM drug |
category #3 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,966       99.66       99.66
        040 |          2        0.02       99.68
        057 |         28        0.28       99.96
        097 |          1        0.01       99.97
        105 |          1        0.01       99.98
        113 |          1        0.01       99.99
        254 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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