Frequencies for first 10,000 rows of rx4v1c2 variable in namcs2014 dataset :

   For RX4, |
 level 1 of |
MULTUM drug |
category #2 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,586       95.86       95.86
        001 |         24        0.24       96.10
        020 |          1        0.01       96.11
        040 |         77        0.77       96.88
        057 |         63        0.63       97.51
        081 |        117        1.17       98.68
        087 |          2        0.02       98.70
        097 |         16        0.16       98.86
        105 |         24        0.24       99.10
        115 |         13        0.13       99.23
        122 |         38        0.38       99.61
        133 |         12        0.12       99.73
        218 |          3        0.03       99.76
        242 |          4        0.04       99.80
        254 |          7        0.07       99.87
        358 |         13        0.13      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 27 Mar 2017