21.   Default rates run highest on the worst-rated bonds, lowest on the best-rated.

22.   Default rates are determined by those receiving student loans, but fail to pay the loans back after graduation.

23.   Despite high default rates, FHA-backed mortgages are an important tool for moving financially strapped families into their first homes.

24.   Even if the nation slips into a recession and default rates rise on junk debt, prices of these already depressed bonds are not likely to crater.

25.   Federal housing officials declined to discuss the default rates.

26.   Four Boston area trade schools are slated to lose their eligibility to participate in a federal student loan program due to high student loan default rates.

27.   He declined to discuss the default rate, calling it a trade secret.

28.   Historically, holders of adjustable mortgages have had higher default rates than their counterparts with fixed mortgages.

29.   How exactly real-time prices become the default rate was left rather murky.

30.   However, default rates have risen recently.