Income / Salaries of MotoGP Riders

How much the salary of a motorcycle rider? well from some information that has been circulating, a Valentino Rossi could get 12 to 15 million Euro per season, very big is not it? then how much salary the other motogp riders? For Jorge Lorenzo and Casey Stoner, proclaim their almost have the same income, Jorge Lorenzo is about 4 to 7 million Euro, and Stoner about 5 to 7 million Euro. Below are