Frequencies for first 10,000 rows of rx8v3c2 variable in namcs2007 dataset :

   for rx8, |
 level 3 of |
multum drug |
category #2 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,956       99.56       99.56
        174 |          6        0.06       99.62
        196 |          1        0.01       99.63
        198 |          1        0.01       99.64
        203 |          3        0.03       99.67
        209 |          1        0.01       99.68
        210 |          1        0.01       99.69
        211 |         26        0.26       99.95
        268 |          2        0.02       99.97
        276 |          1        0.01       99.98
        301 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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