Frequencies for first 10,000 rows of rx4v1c2 variable in nhamcsed2008 dataset :

   for rx4, |
 level 1 of |
multum drug |
category #2 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,676       96.76       96.76
        001 |         33        0.33       97.09
        040 |         46        0.46       97.55
        057 |        100        1.00       98.55
        081 |         23        0.23       98.78
        097 |          5        0.05       98.83
        105 |          1        0.01       98.84
        115 |          5        0.05       98.89
        122 |         92        0.92       99.81
        133 |         10        0.10       99.91
        242 |          4        0.04       99.95
        358 |          4        0.04       99.99
        899 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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