With over 10 Billion donuts made every year in America they're certainly one of the nation's most loved treats. People will queue for hours for a good one and they've even had a fine dining makeover with the foie gras donut from LA.

The industry is worth billions of pounds a year and they come in every conceivable shape, size and flavor combination possible. Don't believe us? Check out these 12 donut facts from the team over at HR Block.