In 2016, we started with Pricearchive tracking about 12 million AliExpress items every day. Among the data we tracked were: price, title, category, number of pieces, price in euros and dollars, discount size, and more. After a while we started tracking 16 million items. At the time, these numbers seemed enormous. But after a while we realized that this was not the limit and there were products that we weren't tracking. This led to an increase in the base of tracked goods.