Frequencies for first 10,000 rows of rx7v1c2 variable in nhamcsed2013 dataset :

   For RX7, |
 level 1 of |
MULTUM drug |
category #2 |
     (broad |
     level) |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,904       99.04       99.04
        001 |         13        0.13       99.17
        040 |         13        0.13       99.30
        057 |         13        0.13       99.43
        081 |          7        0.07       99.50
        087 |          1        0.01       99.51
        097 |          1        0.01       99.52
        105 |          1        0.01       99.53
        115 |          4        0.04       99.57
        122 |         36        0.36       99.93
        133 |          2        0.02       99.95
        218 |          1        0.01       99.96
        242 |          3        0.03       99.99
        331 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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