Despite a drop-off from a June peak, U.S. online grocery sales are nearly five times what they were a year ago, according to the Brick Meets Click/Mercatus Grocery Shopping Survey.

Sales from online grocery delivery and pickup services came in at $5.7 billion in August, down 20.8% from $7.2 billion in the previous survey in June but up 475% from $1.2 billion in August 2019. The study, conducted Aug. 24-26, polled 1,817 U.S. adults.