(Bloomberg) - Canadians consumed as much as C$6.2 billion ($4.8 billion) of marijuana in 2015, almost as much as they spent on wine, the federal statistics agency said Monday as it gears up to officially track weed when it becomes legal next year.

The agency calculated the value by estimating 4.9 million people consumed 698 metric tons of cannabis that year, at an assumed price range of C$7.14 to C$8.84 a gram. It used government health and social surveys and outside research to create its model.