Frequencies for first 10,000 rows of rx1v1c2 variable in namcs2012 dataset :

   For RX1, |
 level 1 of |
MULTUM drug |
category #2 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,154       91.54       91.54
        001 |         81        0.81       92.35
        020 |          4        0.04       92.39
        040 |        151        1.51       93.90
        057 |        107        1.07       94.97
        081 |        110        1.10       96.07
        087 |          3        0.03       96.10
        097 |         69        0.69       96.79
        105 |         76        0.76       97.55
        113 |          1        0.01       97.56
        115 |         32        0.32       97.88
        122 |         82        0.82       98.70
        133 |         47        0.47       99.17
        218 |         50        0.50       99.67
        242 |          3        0.03       99.70
        254 |         13        0.13       99.83
        358 |         16        0.16       99.99
        899 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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