Frequencies for first 10,000 rows of rx8cat2 variable in nhamcsed2009 dataset :

   for rx8, |
multum drug |
category #2 |
 - detailed |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,970       99.70       99.70
        012 |          1        0.01       99.71
        053 |          2        0.02       99.73
        117 |          2        0.02       99.75
        123 |          2        0.02       99.77
        127 |          1        0.01       99.78
        129 |          4        0.04       99.82
        185 |          1        0.01       99.83
        196 |          2        0.02       99.85
        198 |          5        0.05       99.90
        203 |          2        0.02       99.92
        210 |          1        0.01       99.93
        211 |          4        0.04       99.97
        238 |          1        0.01       99.98
        340 |          1        0.01       99.99
        427 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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