Frequencies for first 10,000 rows of contsub7 variable in namcs2011 dataset :

Medication #7 - Controlled |
               status code |      Freq.     Percent        Cum.
---------------------------+-----------------------------------
               Schedule II |         14        0.14        0.14
              Schedule III |         27        0.27        0.41
               Schedule IV |         54        0.54        0.95
                Schedule V |         10        0.10        1.05
                No control |      1,191       11.91       12.96
              Undetermined |         22        0.22       13.18
        Multiple schedules |          1        0.01       13.19
                         . |      8,681       86.81      100.00
---------------------------+-----------------------------------
                     Total |     10,000      100.00

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