The Baton Rouge casino market saw its winnings fall by 9 percent in May, as all of the state’s gambling markets posted declines.

The three riverboat casinos brought in $23.1 million in May, compared with nearly $25.4 million in winnings during May 2015, according to figures released Monday by Louisiana State Police.

L’Auberge Baton Rouge, the biggest casino in the market, posted the smallest drop. L’Auberge brought in nearly $12.6 million during the month, a 5.6 percent decrease from the $13.3 million in winnings during May 2015.

Hollywood Baton Rouge saw the steepest drop in business. The downtown casino won nearly $5.5 million in May, down 14.6 percent from the $6.4 million in May 2015.

The Belle of Baton Rouge, the oldest casino in the market, won nearly $5.1 million in May, down 10.4 percent.

Statewide, the 15 riverboats, four racetrack slots casinos and Harrah’s New Orleans brought in nearly $207.4 million in May, a 12.6 percent decrease from May 2015’s $237.1 million.

The 13,203 video poker machines across the state brought in nearly $47.7 million. That was a 7.3 percent decrease from May 2015, when 14,359 machines at truck stops, bars, restaurants and off-track betting parlors brought in $51.4 million.

Lake Charles, the state’s largest casino market, saw its winnings drop by 16.5 percent, the biggest decrease. The three riverboats and slots at Delta Downs brought in $69.7 million, compared with $83.4 million the year before.

The New Orleans casino market saw its winnings fall by 6.8 percent in May, with gambling establishments bringing in more than $49.4 million during the month. That compares with $53 million in winnings during May 2015.

The Fair Grounds was the only gambling venue in the state to bring in more money than in May 2015. The slots at the track brought in $3.6 million in May, a 5.9 percent increase from $3.4 million.

Winnings at Harrah’s dropped by 3.5 percent to nearly $23.3 million from $24.1 million. The casino has been hit hard by the New Orleans smoking ban, which forces gamblers to leave slot machines and table games for a cigarette. But winnings at New Orleans area riverboats also were down 11.6 percent to $22.5 million.

Shreveport-Bossier City was down 13.4 percent, with the six riverboat casinos and the slots at Harrah’s racetrack bringing in $57.8 million. The Opelousas market, represented by the slots at Evangeline Downs, was down 14.5 percent to $7.3 million.

Follow Timothy Boone on Twitter, @TCB_TheAdvocate.