Frequencies for first 10,000 rows of drug1cl3 variable in namcs2002 dataset :

NDC code #3 |
        for |
 medication |
         #1 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,872       98.72       98.72
       0506 |          1        0.01       98.73
       0514 |          9        0.09       98.82
       1374 |         18        0.18       99.00
       1567 |          1        0.01       99.01
       1568 |          6        0.06       99.07
       1670 |         12        0.12       99.19
       1727 |          2        0.02       99.21
       1728 |         54        0.54       99.75
       1864 |          2        0.02       99.77
       1943 |          5        0.05       99.82
       1944 |         13        0.13       99.95
       1945 |          4        0.04       99.99
       2095 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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