Frequencies for first 10,000 rows of rx6cat3 variable in nhamcsed2007 dataset :

   for rx6, |
multum drug |
category #3 |
 - detailed |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,981       99.81       99.81
        197 |          8        0.08       99.89
        203 |          8        0.08       99.97
        204 |          1        0.01       99.98
        265 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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