Frequencies for first 10,000 rows of rx7v3c2 variable in nhamcsed2011 dataset :

   For RX7, |
 level 3 of |
MULTUM drug |
category #2 |
  (detailed |
     level) |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,971       99.71       99.71
        196 |          3        0.03       99.74
        198 |         10        0.10       99.84
        203 |          3        0.03       99.87
        210 |          1        0.01       99.88
        211 |          4        0.04       99.92
        239 |          1        0.01       99.93
        385 |          5        0.05       99.98
        388 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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