It is estimated that 12–15 million Americans had been active on the net sports bettors in 2017 alone. http://kanal2.net/wiki/index.php?title=%2fturnname.com/%EB%A8%B9%ED%8A%80%EA%B2%80%EC%A6%9D%EC%9D%98-%EC%8A%B9%EB%A6%AC-%EC%8A%88%EC%96%B4%EB%A7%A8%EA%B3%BC-%ED%95%A8%EA%BB%98-%EC%95%88%EC%A0%84%ED%95%98%EA%B2%8C-%EC%A7%80%ED%82%A4%EC%9E%90/