The national foreclosure filing rate in August increased 27 percent compared to the same month a year ago, a significantly slower pace than in previous months, according to data released last week . According to data firm RealtyTrac, the top three states in foreclosure rates were Nevada, California and Arizona, in that order. Florida, Michigan, Georgia, Ohio, Colorado, Illinois and Indiana rounded out the top 10, though Michigan, Georgia, Ohio and Colorado all reported rate decreases year-over-year. Together, California, Florida and Arizona accounted for more than half of the nation’s volume of foreclosure activity. July’s leader, the Cape Coral-Fort Myers, Fla., metro area, dropped to sixth.