Frequencies for first 10,000 rows of rx4v1c3 variable in namcs2015 dataset :

   For RX4, |
 level 1 of |
MULTUM drug |
category #3 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,955       99.55       99.55
        040 |         12        0.12       99.67
        057 |         25        0.25       99.92
        097 |          1        0.01       99.93
        105 |          3        0.03       99.96
        113 |          4        0.04      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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