Frequencies for first 10,000 rows of drg8ing3 variable in namcs2005 dataset :

 ingredient |
code #3 for |
 medication |
         #8 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,990       99.90       99.90
      55105 |          5        0.05       99.95
      56345 |          1        0.01       99.96
      56495 |          1        0.01       99.97
      70054 |          1        0.01       99.98
      70259 |          1        0.01       99.99
      70358 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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