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.

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.

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.