Frequencies for first 10,000 rows of rx9v1c1 variable in nhamcsed2012 dataset :

   For RX9, |
 level 1 of |
MULTUM drug |
category #1 |
     (broad |
     level) |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,825       98.25       98.25
        001 |         11        0.11       98.36
        040 |         20        0.20       98.56
        057 |         50        0.50       99.06
        081 |          7        0.07       99.13
        087 |         24        0.24       99.37
        097 |          3        0.03       99.40
        105 |          8        0.08       99.48
        115 |         21        0.21       99.69
        122 |          7        0.07       99.76
        133 |          3        0.03       99.79
        218 |          1        0.01       99.80
        242 |          8        0.08       99.88
        254 |          4        0.04       99.92
        331 |          1        0.01       99.93
        358 |          6        0.06       99.99
        365 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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