1 billion is what, about 1% of supply of bitcoin? So less than that since this includes bitcoin cash as well?

> In the past year, the BitPay wallet added integrations with major gift card brands, enabling users to buy gift cards in-app for travel, food, and shopping with Bitcoin and Bitcoin Cash.

They don't break out what types of goods/services are being purchased. I wonder to what percentage of their transaction are being used to sell / launder bitcoins associated with illegal activity by buying gift cards that can then be resold.