Frequencies for first 10,000 rows of rx2v2c2 variable in namcs2009 dataset :

   for rx2, |
 level 2 of |
multum drug |
category #2 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,414       94.14       94.14
        005 |          9        0.09       94.23
        012 |          5        0.05       94.28
        015 |         14        0.14       94.42
        018 |          1        0.01       94.43
        019 |         15        0.15       94.58
        046 |         79        0.79       95.37
        053 |          5        0.05       95.42
        064 |         42        0.42       95.84
        065 |         67        0.67       96.51
        066 |          2        0.02       96.53
        083 |        132        1.32       97.85
        098 |         12        0.12       97.97
        101 |          9        0.09       98.06
        117 |         12        0.12       98.18
        120 |          2        0.02       98.20
        123 |         27        0.27       98.47
        124 |         16        0.16       98.63
        125 |          1        0.01       98.64
        127 |          1        0.01       98.65
        129 |          3        0.03       98.68
        130 |          1        0.01       98.69
        132 |          7        0.07       98.76
        135 |          1        0.01       98.77
        136 |         10        0.10       98.87
        146 |          4        0.04       98.91
        151 |          8        0.08       98.99
        192 |          9        0.09       99.08
        219 |          1        0.01       99.09
        251 |          1        0.01       99.10
        253 |         13        0.13       99.23
        257 |          2        0.02       99.25
        265 |          1        0.01       99.26
        289 |         13        0.13       99.39
        303 |         10        0.10       99.49
        320 |         27        0.27       99.76
        340 |         13        0.13       99.89
        363 |          3        0.03       99.92
        417 |          6        0.06       99.98
        420 |          1        0.01       99.99
        423 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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