$广汽长丰(SH600991)$ gambling—a perpetual monopoly. During the nearly 26 years of the law’s existence, legal sports gambling in Nevada rose 172%, from $1.8 billion per year to $4.9 billion, according to the UNLV Center for Gaming Research. Meanwhile, the American Gaming Association estimates that the national illegal sports gambling market grew from $80 billion in 1999 to $150 billion currently.