The Sept. 16 tax holiday on recreational marijuana in Colorado made headlines the world over. And now, the Marijuana Business Daily has some numbers on the business impact.

According to columnist Becky Olson, the three cannabis retailers surveyed experienced an 86 percent increase in daily customers and a 128 percent uptick in sales. But the blip wasn't anything compared with the surge on 420, Olson writes, which drew people from all over the world. Writes Olson:

Though this was a one-time circumstance due to a quirk in Colorado's constitution, the outcome highlights the importance of cannabis businesses being close to the pulse of their markets and always on the lookout for opportunities to build brand recognition, drive sales and save money.

Check out the full chart below.

h/t Marijuana Business Daily