Do you guys know the main reason why "Americas" is the biggest in sales

[Severance]

billsalias said:

Are web sales tracked? I thought online sales were not tracked so these imports would not get counted.

They're not bought online, they get "Shipped" unofficially , foreign companies buy them from the publishers and sell them to their countries at higher costs, they don't count as shipped but count as bought

publisher don't publish them outside of their publishing areas so they sell them to those companies in order to "Release" the games outside of their publishing region.

For example Nintendo of America publishes Mario in america only, so these small foreign companies buy a large number of Marios and then ship them to their home country, and make the price much higher to gain profit, this way these sales are going to count as sales for "america" not for that other country, because its not an official shipping.