Mortgage delinquency rates continued their upward trend in the fourth quarter of 2015 with the highest percentage of delinquencies recorded for the year, according to the Inside Mortgage Finance Large Servicer Delinquency Index. About 5.98 percent of the $5.194 trillion in home loans covered in the survey were in some stage of default as of Dec. 31, 2015. That was up from 5.85 percent in the third quarter of last year, but down from the 6.53 percent in the fourth quarter of 2014. The number of loans that were more than 90 days late witnessed the largest uptick, growing from 1.62 percent to 1.71 percent. The only category that showed any kind of a decrease was...[Includes one data table]