Frequencies for first 10,000 rows of rx6v3c3 variable in namcs2007 dataset :

   for rx6, |
 level 3 of |
multum drug |
category #3 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,982       99.82       99.82
        185 |          1        0.01       99.83
        197 |          3        0.03       99.86
        203 |         14        0.14      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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