[nnnnnnnnnnnnn]

I think you might have misread the table at the page you linked. Above the table, it says "Shipments are in thousands of units." According to the table, Apple shipped 20 million notebooks and desktops last year, not 20 thousand.

[squarefoot]

Doh... Same proportions but yeah, damn language barrier, over here the comma and point meanings are reversed compared to English. Thanks!