The U.S. Indian gaming industry has posted $28.5b gross gaming revenue, marking the fifth consecutive year of growth since 2009.

National Indian Gaming Commission (NIGC) has released a data showing that the Indian gaming industry revenue is up 1.5% to 28.5b in 2014 compared $28b last year.

“Overall, the Indian gaming industry remains stable. Stability comes from solid operations, strong tribal management, and effective regulation by the Indian gaming’s regulatory community, which includes the NIGC and more than 5,400 tribal regulators,” said NIGC Chairman Jonodev Chaudhuri. “Sound regulation is an essential pillar of support for the critical avenue of self-sufficiency and self-determination that Indian gaming has proven for so many tribal nations. Sound regulation preserves public confidence, protects tribal assets, and promotes a safe and fair environment for all people who interact with the industry.”

In 2014, 72% of operations showed year-on-year improvement, 68% of which showed a moderate growth.