Frequencies for first 10,000 rows of rx4v3c2 variable in nhamcsed2011 dataset :

   For RX4, |
 level 3 of |
MULTUM drug |
category #2 |
  (detailed |
     level) |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,867       98.67       98.67
        174 |          1        0.01       98.68
        180 |          4        0.04       98.72
        196 |         16        0.16       98.88
        198 |         29        0.29       99.17
        203 |         16        0.16       99.33
        210 |          5        0.05       99.38
        211 |         25        0.25       99.63
        239 |          9        0.09       99.72
        248 |          1        0.01       99.73
        268 |          6        0.06       99.79
        297 |          1        0.01       99.80
        385 |         11        0.11       99.91
        386 |          1        0.01       99.92
        388 |          5        0.05       99.97
        389 |          1        0.01       99.98
        407 |          1        0.01       99.99
        450 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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