Frequencies for first 10,000 rows of rx6v1c1 variable in nhamcsed2007 dataset :

   for rx6, |
 level 1 of |
multum drug |
category #1 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,537       95.37       95.37
        001 |         50        0.50       95.87
        020 |          1        0.01       95.88
        040 |         53        0.53       96.41
        057 |        159        1.59       98.00
        081 |         14        0.14       98.14
        087 |         38        0.38       98.52
        097 |         20        0.20       98.72
        105 |         12        0.12       98.84
        115 |         26        0.26       99.10
        122 |         37        0.37       99.47
        133 |         12        0.12       99.59
        242 |         16        0.16       99.75
        358 |         22        0.22       99.97
        365 |          3        0.03      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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