Frequencies for first 10,000 rows of rx8cat2 variable in nhamcsed2007 dataset :

   for rx8, |
multum drug |
category #2 |
 - detailed |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,984       99.84       99.84
        015 |          2        0.02       99.86
        109 |          1        0.01       99.87
        117 |          2        0.02       99.89
        120 |          1        0.01       99.90
        124 |          1        0.01       99.91
        180 |          1        0.01       99.92
        198 |          3        0.03       99.95
        203 |          1        0.01       99.96
        210 |          1        0.01       99.97
        211 |          1        0.01       99.98
        239 |          1        0.01       99.99
        292 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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