Frequencies for first 10,000 rows of rx9v1c1 variable in nhamcsed2013 dataset :

   For RX9, |
 level 1 of |
MULTUM drug |
category #1 |
     (broad |
     level) |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,825       98.25       98.25
        001 |         22        0.22       98.47
        040 |         20        0.20       98.67
        057 |         41        0.41       99.08
        081 |          5        0.05       99.13
        087 |         23        0.23       99.36
        097 |          6        0.06       99.42
        105 |          5        0.05       99.47
        115 |         13        0.13       99.60
        122 |          9        0.09       99.69
        133 |          7        0.07       99.76
        218 |          1        0.01       99.77
        242 |          9        0.09       99.86
        254 |          1        0.01       99.87
        331 |          1        0.01       99.88
        358 |         12        0.12      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 7 Nov 2016