Frequencies for first 10,000 rows of rx1v3c2 variable in namcs2009 dataset :

   for rx1, |
 level 3 of |
multum drug |
category #2 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,521       95.21       95.21
        102 |         14        0.14       95.35
        174 |         15        0.15       95.50
        180 |          7        0.07       95.57
        185 |          8        0.08       95.65
        186 |          7        0.07       95.72
        196 |         16        0.16       95.88
        197 |          1        0.01       95.89
        198 |         38        0.38       96.27
        201 |          1        0.01       96.28
        203 |         38        0.38       96.66
        209 |          3        0.03       96.69
        210 |          3        0.03       96.72
        211 |        126        1.26       97.98
        235 |          1        0.01       97.99
        236 |          1        0.01       98.00
        238 |          1        0.01       98.01
        239 |         57        0.57       98.58
        248 |          1        0.01       98.59
        268 |          9        0.09       98.68
        276 |          1        0.01       98.69
        292 |          5        0.05       98.74
        301 |         20        0.20       98.94
        317 |          8        0.08       99.02
        374 |          1        0.01       99.03
        385 |         38        0.38       99.41
        386 |          8        0.08       99.49
        387 |          1        0.01       99.50
        388 |         29        0.29       99.79
        389 |         11        0.11       99.90
        395 |          2        0.02       99.92
        407 |          8        0.08      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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