Frequencies for first 10,000 rows of contsub24 variable in nhamcsed2014 dataset :

      Controlled substance |
status code for medication |
                       #24 |      Freq.     Percent        Cum.
---------------------------+-----------------------------------
                No control |         10        0.10        0.10
                         . |      9,990       99.90      100.00
---------------------------+-----------------------------------
                     Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 11 Apr 2017