Regulators say three of Ohio's four casinos saw revenue increases last month. Data released Thursday by the Ohio Casino Control Commission shows the Columbus casino saw the biggest increase, from $15.7 million in September to $17.7 million last month. That's a nearly 13 percent increase. Cleveland's revenues increased by about 4 percent to $19.5 million. Toledo saw a much more moderate increase of 1 percent, to $14.7 million. Cincinnati's revenues declined by 8 percent to $18.2 million. Statewide, casino revenues totaled $70 million in October, up from $68.9 million in September. The monthly high this year was $84 million in March, boosted by the Cincinnati casino's opening. The casinos have drawn nearly $688 million so far this year.