Frequencies for first 10,000 rows of contsub25 variable in nhamcsed2015 dataset

      Controlled substance |
status code for medication |
                       #25 |      Freq.     Percent        Cum.
---------------------------+-----------------------------------
              Schedule III |          2        0.02        0.02
                No control |         11        0.11        0.13
        Multiple schedules |          1        0.01        0.14
                         . |      9,986       99.86      100.00
---------------------------+-----------------------------------
                     Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 20 Nov 2017