Frequencies for first 10,000 rows of rx9v1c2 variable in nhamcsed2014 dataset :

   For RX9, |
 level 1 of |
MULTUM drug |
category #2 |
     (broad |
     level) |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,956       99.56       99.56
        001 |          5        0.05       99.61
        040 |          3        0.03       99.64
        057 |          9        0.09       99.73
        081 |          7        0.07       99.80
        097 |          1        0.01       99.81
        105 |          2        0.02       99.83
        115 |          2        0.02       99.85
        122 |         13        0.13       99.98
        133 |          1        0.01       99.99
        242 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 11 Apr 2017