Frequencies for first 10,000 rows of rx4v3c2 variable in nhamcsed2013 dataset :

   For RX4, |
 level 3 of |
MULTUM drug |
category #2 |
  (detailed |
     level) |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,843       98.43       98.43
        102 |          1        0.01       98.44
        180 |          6        0.06       98.50
        196 |         17        0.17       98.67
        198 |         43        0.43       99.10
        203 |         18        0.18       99.28
        210 |          5        0.05       99.33
        211 |         17        0.17       99.50
        239 |          9        0.09       99.59
        268 |          4        0.04       99.63
        292 |          1        0.01       99.64
        385 |         28        0.28       99.92
        388 |          6        0.06       99.98
        389 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 7 Nov 2016