FILE --In this Wednesday, Oct. 11, 2017, file photograph, Tim Cullen, chief executive officer of the Colorado Harvest Company, holds up a marijuana bud ready for sale in Denver. A state-sponsored study released Thursday, Aug. 2, 2018, shows that Colorado's marijuana industry is growing less than half the plants permitted by regulators but still meeting customers' demand four years since sales began. (AP Photo/David Zalubowski, File)
