US tribal gaming operators reported revenue rising nearly 4% in their most recent fiscal year, pushing the sector to yet another record result.

Figures released Tuesday by the National Indian Gaming Commission (NIGC) show that the 494 gaming venues operated by 242 federally recognized tribes generated gross gaming revenue of $32.4b in fiscal 2017, 3.9% higher than the fiscal 2016 result, which featured 10 fewer gaming venues.

The FY17 sum marks the seventh consecutive year of annual growth after flatlining at $26.5b in 2010. There were 33 venues earning over $250m in FY17, unchanged from FY16, while the number of venues earning between $100m and $250m rose by five to 56.

The 74 tribal casinos in the Sacramento region (California and Northern Nevada) claimed the largest slice of FY17 revenue at just under $9b, followed by $7.3b generated by the 37 venues in the Washington DC category (Alabama, Connecticut, Florida, Louisiana, Mississippi, North Carolina and New York).