Pennsylvania's casinos saw a six percent bump in table game revenue during 2013, but overall gambling revenue for the state was down, compared to 2012, officials report.

Parx Casino in Bensalem, PA (Lisa Lake/Getty Images for Philadelphia Style Magazine)

Pennsylvania's gambling market is the nation's second largest, after Las Vegas, having passed New Jersey for the runner-up spot a year ago.

State regulators released year-end revenue numbers for table games Thursday. They show that Pennsylvania's 12 casinos took in about $730 million from table games last year, a 6 percent increase over 2012.

That wasn't enough to prevent the state's gambling industry from suffering its first overall revenue decline since casino play began in 2006. Thanks to a decline in slot-machine play, gross casino revenue in 2013 dipped about 1.4 percent to $3.1 billion. The year-end slots numbers were released in early January.

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