Frequencies for first 10,000 rows of rx7v3c2 variable in namcs2007 dataset :

   for rx7, |
 level 3 of |
multum drug |
category #2 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,928       99.28       99.28
        174 |          4        0.04       99.32
        196 |          3        0.03       99.35
        197 |          1        0.01       99.36
        198 |          6        0.06       99.42
        203 |          9        0.09       99.51
        209 |          2        0.02       99.53
        210 |          1        0.01       99.54
        211 |         37        0.37       99.91
        238 |          1        0.01       99.92
        276 |          1        0.01       99.93
        301 |          5        0.05       99.98
        317 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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