I don’t know how difficult it is to get raw, objective data on this answer but the blog, Original Pechanga, has given us a guess: $500 million dollars.
The blog keeps contact with many disenrolled Indians from several tribes and based on their former monthly payments from their former tribes’ casinos multiplied by the amount of months they’ve been disenrolled.
Check it out: http://www.originalpechanga.com/2011/09/follow-money-per-capita-theft-by-tribal.html
