Frequencies for first 10,000 rows of rx7v3c2 variable in nhamcsed2007 dataset :

   for rx7, |
 level 3 of |
multum drug |
category #2 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,974       99.74       99.74
        180 |          1        0.01       99.75
        196 |          3        0.03       99.78
        198 |          5        0.05       99.83
        203 |          3        0.03       99.86
        210 |          2        0.02       99.88
        211 |          9        0.09       99.97
        239 |          1        0.01       99.98
        268 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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