Frequencies for first 10,000 rows of drug5cl3 variable in namcs2002 dataset :

NDC code #3 |
        for |
 medication |
         #5 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,958       99.58       99.58
       0514 |          3        0.03       99.61
       1374 |          4        0.04       99.65
       1479 |          1        0.01       99.66
       1567 |          1        0.01       99.67
       1728 |         28        0.28       99.95
       1864 |          1        0.01       99.96
       1944 |          4        0.04      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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