The Press Democrat – Revenues at California Indian casinos increased slightly in 2012, but still not as robustly as pre-recession years, according to a report being released Wednesday. California’s 68 tribal casinos raked in $6.96 billion in 2012, the most recent year available, according to Casino City’s Indian Gaming Industry Report. That was nearly a 1 percent increase over the $6.91 billion they collected in 2011. It was the second year of positive growth for California tribal casinos after experiencing three consecutive years of decline, according to the author, Alan Meister, an economist with Nathan Associates Inc. The 2012 growth…