Frequencies for first 10,000 rows of rx2v1c2 variable in nhamcsed2012 dataset :

   For RX2, |
 level 1 of |
MULTUM drug |
category #2 |
     (broad |
     level) |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,083       90.83       90.83
        001 |         95        0.95       91.78
        040 |        110        1.10       92.88
        057 |        223        2.23       95.11
        081 |         69        0.69       95.80
        087 |          1        0.01       95.81
        097 |          8        0.08       95.89
        105 |          8        0.08       95.97
        115 |         22        0.22       96.19
        122 |        357        3.57       99.76
        133 |         21        0.21       99.97
        218 |          1        0.01       99.98
        242 |          1        0.01       99.99
        254 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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