Frequencies for first 10,000 rows of rx2v3c2 variable in nhamcsed2008 dataset :

   for rx2, |
 level 3 of |
multum drug |
category #2 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,328       93.28       93.28
        102 |          4        0.04       93.32
        180 |         10        0.10       93.42
        185 |          1        0.01       93.43
        196 |        248        2.48       95.91
        198 |        122        1.22       97.13
        201 |          3        0.03       97.16
        203 |         42        0.42       97.58
        210 |         22        0.22       97.80
        211 |         72        0.72       98.52
        239 |         28        0.28       98.80
        268 |         19        0.19       98.99
        292 |          1        0.01       99.00
        301 |          8        0.08       99.08
        385 |         63        0.63       99.71
        386 |          2        0.02       99.73
        387 |          2        0.02       99.75
        388 |         15        0.15       99.90
        389 |          9        0.09       99.99
        999 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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