Frequencies for first 10,000 rows of rx1v1c2 variable in nhamcsed2011 dataset :

   For RX1, |
 level 1 of |
MULTUM drug |
category #2 |
     (broad |
     level) |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,757       87.57       87.57
        001 |        160        1.60       89.17
        040 |        182        1.82       90.99
        057 |        240        2.40       93.39
        081 |        140        1.40       94.79
        087 |          2        0.02       94.81
        097 |          5        0.05       94.86
        105 |         13        0.13       94.99
        113 |          2        0.02       95.01
        115 |         19        0.19       95.20
        122 |        439        4.39       99.59
        133 |         24        0.24       99.83
        218 |          1        0.01       99.84
        242 |         15        0.15       99.99
        254 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 28 Mar 2016