OKLAHOMA CITY (AP) — Medical cannabis sales are continuing to climb in Oklahoma, topping $23 million in May and marking the eighth straight month of growth for the new industry.

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Figures from the Oklahoma Tax Commission show the state collected more than $1.6 million in May from the 7% excise tax on marijuana. Another $2 million was collected in state and local sales taxes.

To date, medical marijuana sales have generated nearly $10.7 million for state coffers.

Sales have grown significantly each month since dispensaries began selling cannabis in October.

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The number of people eligible to obtain the drug also is continuing to skyrocket. The Oklahoma Medical Marijuana Authority says it has approved nearly 130,000 patient licenses since August.