Frequencies for first 10,000 rows of rx8v2c2 variable in nhamcsed2008 dataset :

   for rx8, |
 level 2 of |
multum drug |
category #2 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,980       99.80       99.80
        015 |          1        0.01       99.81
        046 |          3        0.03       99.84
        053 |          1        0.01       99.85
        065 |          6        0.06       99.91
        083 |          2        0.02       99.93
        098 |          1        0.01       99.94
        123 |          3        0.03       99.97
        129 |          2        0.02       99.99
        251 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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