Frequencies for first 10,000 rows of rx7v1c1 variable in nhamcsed2014 dataset :

   For RX7, |
 level 1 of |
MULTUM drug |
category #1 |
     (broad |
     level) |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,477       94.77       94.77
        001 |         55        0.55       95.32
        040 |         48        0.48       95.80
        057 |        169        1.69       97.49
        081 |         12        0.12       97.61
        087 |         53        0.53       98.14
        097 |         17        0.17       98.31
        105 |          7        0.07       98.38
        113 |          1        0.01       98.39
        115 |         47        0.47       98.86
        122 |         42        0.42       99.28
        133 |         15        0.15       99.43
        218 |          1        0.01       99.44
        242 |         17        0.17       99.61
        254 |          3        0.03       99.64
        331 |          4        0.04       99.68
        358 |         28        0.28       99.96
        365 |          4        0.04      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 11 Apr 2017