Frequencies for first 10,000 rows of contsub5 variable in namcs2011 dataset :

Medication #5 - Controlled |
               status code |      Freq.     Percent        Cum.
---------------------------+-----------------------------------
               Schedule II |         32        0.32        0.32
              Schedule III |         37        0.37        0.69
               Schedule IV |         92        0.92        1.61
                Schedule V |          9        0.09        1.70
                No control |      2,086       20.86       22.56
              Undetermined |         46        0.46       23.02
        Multiple schedules |          3        0.03       23.05
                         . |      7,695       76.95      100.00
---------------------------+-----------------------------------
                     Total |     10,000      100.00

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