Frequencies for first 10,000 rows of rx1v3c2 variable in namcs2007 dataset :

   for rx1, |
 level 3 of |
multum drug |
category #2 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,682       96.82       96.82
        102 |         13        0.13       96.95
        138 |          3        0.03       96.98
        143 |          3        0.03       97.01
        174 |          3        0.03       97.04
        180 |          2        0.02       97.06
        182 |          1        0.01       97.07
        185 |          5        0.05       97.12
        186 |          4        0.04       97.16
        196 |         30        0.30       97.46
        198 |         28        0.28       97.74
        201 |          4        0.04       97.78
        203 |         42        0.42       98.20
        209 |          4        0.04       98.24
        210 |          4        0.04       98.28
        211 |         86        0.86       99.14
        238 |          4        0.04       99.18
        239 |         29        0.29       99.47
        268 |          8        0.08       99.55
        276 |          1        0.01       99.56
        292 |          9        0.09       99.65
        301 |         27        0.27       99.92
        317 |          8        0.08      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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