Mortgage rates ticked higher this week, mortgage buyer Freddie Mac said Thursday. Freddie Mac's latest Primary Mortgage Market Survey, released Thursday, showed the average rate on the benchmark 30-year fixed mortgage increased to 6.22% from last week's reading of 6.19%. The average rate on a 30-year loan was 6.6% a year ago. HOME DELISTINGS SURGE AS SELLERS STRUGGLE TO GET THEIR PRICE "The average 30-year fixed-rate mortgage is well below the year-to-date average of 6.62%, providing some sense of balance t ...