Frequencies for first 10,000 rows of rx6v1c2 variable in namcs2007 dataset :

   for rx6, |
 level 1 of |
multum drug |
category #2 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,844       98.44       98.44
        001 |          7        0.07       98.51
        040 |         14        0.14       98.65
        057 |         31        0.31       98.96
        081 |         48        0.48       99.44
        097 |         12        0.12       99.56
        105 |         16        0.16       99.72
        115 |          6        0.06       99.78
        122 |         10        0.10       99.88
        133 |          1        0.01       99.89
        218 |          1        0.01       99.90
        358 |         10        0.10      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 28 Mar 2016