Foreclosure rates in the four-county Sacramento region fell by more than half in May from the same month a year ago. Among outstanding mortgages, the rate of foreclosures fell from 2.61 percent in May 2012 to 1.09 percent in May of this year. Foreclosure rates in the region have been falling for months as home values rise and the economy gradually improves. May’s foreclosure rate was lower than the national average of 2.61 percent. The numbers of homeowners seriously delinquent on their mortgages in the Sacramento area also continued falling. In May, the 90-day delinquency rate fell to 3.86 percent from 6.65 percent the same month last year. The California Association of Realtors reported a continuing decrease in sales of distressed properties.