Frequencies for first 10,000 rows of rx3v3c2 variable in namcs2006 dataset :

   for rx3, |
 level 3 of |
multum drug |
category #2 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,808       98.08       98.08
        060 |          1        0.01       98.09
        102 |          4        0.04       98.13
        140 |          1        0.01       98.14
        141 |          1        0.01       98.15
        158 |          1        0.01       98.16
        174 |         13        0.13       98.29
        185 |          1        0.01       98.30
        186 |          3        0.03       98.33
        196 |         15        0.15       98.48
        197 |          1        0.01       98.49
        198 |          5        0.05       98.54
        201 |          1        0.01       98.55
        203 |         31        0.31       98.86
        210 |          2        0.02       98.88
        211 |         88        0.88       99.76
        238 |          3        0.03       99.79
        239 |          4        0.04       99.83
        264 |          3        0.03       99.86
        292 |          1        0.01       99.87
        301 |          7        0.07       99.94
        317 |          6        0.06      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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