Halloween has candy, Valentine’s Day has flowers, and Christmas has, well … everything. For cannabis, April 20 (or 420) is the official holiday for all things weed, and that translates into one of the biggest sales days of the year.

On March 15, Headset, the leading cannabis data and market intelligence platform, released a report on consumer purchasing trends during 4/20. Their analysis revealed vital statistics and trends that retailers can use to maximize the bottom line during this massive day of consumer spending.

The report shows that the volume of products Americans put in their shopping carts last 4/20 increased by 86 percent over the previous four weeks of sales. In Canada, that number increased by 52 percent. This year, the data shows that cannabis sales on 4/20 are expected to increase by at least 100 percent in the United States and at least 50 percent in Canada.