The New Orleans casino market saw its winnings fall by 6.8 percent in May from a year ago, as all of the state’s gambling markets posted declines.

The New Orleans gambling establishments brought in more than $49.4 million during the month, according to figures released Monday by Louisiana State Police. 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 over the $3.4 million in winnings the year before.

Winnings at Harrah’s dropped 3.5 percent to nearly $23.3 million from $24.1 million in May 2015. 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 the Treasure Chest and Boomtown New Orleans riverboat casinos, which are in Jefferson Parish and outside the city’s smoking ban, saw their business tumble more.

Boomtown brought in nearly $9.7 million in May, a 12.2 percent drop from the nearly $11 million in winnings from the year before.

Treasure Chest fell 6.3 percent from $9.6 million to $9 million.

Amelia Belle was down 21 percent to $3.8 million.

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 in the year before.

Follow Timothy Boone on Twitter, @TCB_TheAdvocate.