Tribal casinos across the United States posted a revenue increase in 2013 but the pace of growth was the slowest since the 2008 economic recession.

This week saw the release of Casino City’s annual Indian Gaming Report, which showed annual revenue up 0.5% to $28.3b. The figure is another all-time high for tribal casinos and the fourth consecutive year of annual growth.

However, the pace of 2013’s growth was slower than 2012’s 2% and 2011’s 3%. Study author Alan Meister blamed the slowdown on the sluggish economy, increasing competition and market saturation.

Tribal casinos accounted for around 43% of all US casino revenue in 2013. Non-tribal casinos enjoyed slightly better growth (1.5%) in 2013, although this number was down from 4% in 2012. Non-tribal racinos reported a revenue decline of 0.2% and card rooms fell 0.3%.