Wouldn't that mean that while many people moved to Colorado (some presumably for the weed) vehicle accident rates fell after legalization? The way you word it

Wouldn't that mean that while many people moved to Colorado (some presumably for the weed) vehicle accident rates fell after legalization? The way you word it seems to imply that weed led to more accidents, and the incoming people "covered it up" statistically, but that doesn't seem to be the simplest read of the numbers.