Frequencies for first 10,000 rows of rx4v3c2 variable in namcs2009 dataset :

   for rx4, |
 level 3 of |
multum drug |
category #2 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,750       97.50       97.50
        174 |         10        0.10       97.60
        185 |          2        0.02       97.62
        186 |          1        0.01       97.63
        196 |          5        0.05       97.68
        198 |         29        0.29       97.97
        203 |         30        0.30       98.27
        210 |          3        0.03       98.30
        211 |        101        1.01       99.31
        238 |          2        0.02       99.33
        239 |          3        0.03       99.36
        268 |          5        0.05       99.41
        276 |          1        0.01       99.42
        292 |          1        0.01       99.43
        301 |          6        0.06       99.49
        317 |          3        0.03       99.52
        385 |          9        0.09       99.61
        386 |          7        0.07       99.68
        388 |         17        0.17       99.85
        389 |         14        0.14       99.99
        395 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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