Frequencies for first 10,000 rows of rx4v3c2 variable in namcs2010 dataset :

   for rx4, |
 level 3 of |
multum drug |
category #2 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,756       97.56       97.56
        102 |          1        0.01       97.57
        174 |          4        0.04       97.61
        180 |          4        0.04       97.65
        182 |          2        0.02       97.67
        185 |          3        0.03       97.70
        186 |          1        0.01       97.71
        196 |          8        0.08       97.79
        198 |         23        0.23       98.02
        203 |         14        0.14       98.16
        209 |          2        0.02       98.18
        210 |          1        0.01       98.19
        211 |        105        1.05       99.24
        238 |          4        0.04       99.28
        239 |          6        0.06       99.34
        268 |          2        0.02       99.36
        279 |          2        0.02       99.38
        292 |          1        0.01       99.39
        297 |          1        0.01       99.40
        301 |          9        0.09       99.49
        317 |          1        0.01       99.50
        385 |         12        0.12       99.62
        386 |          4        0.04       99.66
        387 |          2        0.02       99.68
        388 |         20        0.20       99.88
        389 |          8        0.08       99.96
        395 |          1        0.01       99.97
        442 |          2        0.02       99.99
        445 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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