In 2002 the FBI estimated that the Mafia earns $50–$90 billion a year - This is for the US mob.

Read here http://www.cnbc.com/id/37593438

Same on WIkipedia

And same here http://www.youtube.com/watch?v=AZ2SmvPdMs0&feature=related - 7:50,but on the video on 7:50 it say 100 billion.

I dont know if its true or not,

"A fish with his mouth closed never get's caught"