For the second straight year, Pennsylvania has topped the American Gaming Association's State of the States survey of casino gambling tax revenue. Pennsylvania's 10 casinos generated $1.328 billion in tax revenue last year, besting second-place Indiana by $450 million and exceeding 2009's state total by nearly 19 percent. Pennsylvania casinos must pay 55 percent of gross slot machine revenue and 16 percent of table game revenue to the commonwealth. Las Vegas and New Jersey both exceeded Pennsylvania in terms of gross gaming revenue, but their tax rates are approximately 7.75 and 9.25 percent, respectively. Pennsylvania, which legalized gaming four years ago, also experienced the highest jump in casino employment from 2009 to 2010, having expanded its work force by nearly 40 percent. The AGA's full report is available at americangaming.org.