Frequencies for first 10,000 rows of rx2v1c2 variable in namcs2012 dataset :

   For RX2, |
 level 1 of |
MULTUM drug |
category #2 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,402       94.02       94.02
        001 |         39        0.39       94.41
        040 |        110        1.10       95.51
        057 |        114        1.14       96.65
        081 |        112        1.12       97.77
        087 |          1        0.01       97.78
        097 |         24        0.24       98.02
        105 |         40        0.40       98.42
        113 |          1        0.01       98.43
        115 |         18        0.18       98.61
        122 |         69        0.69       99.30
        133 |         26        0.26       99.56
        218 |         16        0.16       99.72
        242 |          9        0.09       99.81
        254 |          5        0.05       99.86
        358 |         14        0.14      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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