Frequencies for first 10,000 rows of rx7v1c1 variable in namcs2010 dataset :

   for rx7, |
 level 1 of |
multum drug |
category #1 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,861       88.61       88.61
        001 |         34        0.34       88.95
        020 |          3        0.03       88.98
        028 |          2        0.02       89.00
        040 |        177        1.77       90.77
        057 |        221        2.21       92.98
        081 |         12        0.12       93.10
        087 |         87        0.87       93.97
        097 |         53        0.53       94.50
        105 |         16        0.16       94.66
        113 |         13        0.13       94.79
        115 |        116        1.16       95.95
        122 |         90        0.90       96.85
        133 |         60        0.60       97.45
        218 |         25        0.25       97.70
        242 |         59        0.59       98.29
        254 |         15        0.15       98.44
        358 |        154        1.54       99.98
        365 |          1        0.01       99.99
        899 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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