Frequencies for first 10,000 rows of drug5cl2 variable in namcs2005 dataset :

ndc code #2 |
        for |
 medication |
         #5 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,817       98.17       98.17
       0506 |          1        0.01       98.18
       0507 |         14        0.14       98.32
       0508 |          1        0.01       98.33
       0510 |          2        0.02       98.35
       0512 |         24        0.24       98.59
       0513 |          9        0.09       98.68
       0514 |          1        0.01       98.69
       0875 |          1        0.01       98.70
       0876 |          2        0.02       98.72
       0913 |          5        0.05       98.77
       1036 |          4        0.04       98.81
       1040 |          3        0.03       98.84
       1180 |          2        0.02       98.86
       1265 |          1        0.01       98.87
       1568 |          1        0.01       98.88
       1569 |          1        0.01       98.89
       1671 |          5        0.05       98.94
       1722 |          1        0.01       98.95
       1724 |         54        0.54       99.49
       1727 |         19        0.19       99.68
       1728 |         13        0.13       99.81
       1940 |          1        0.01       99.82
       1941 |          2        0.02       99.84
       1943 |          7        0.07       99.91
       1944 |          4        0.04       99.95
       1947 |          4        0.04       99.99
       2100 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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