Students who graduated from college in 2010 with student loans owed an average of $25,250, up 5 percent from the previous year, according to a report scheduled for release Thursday. The average debt — once again the highest on record — came as the class of 2010 faced an unemployment rate for new college graduates of 9.1 percent, the highest in recent years, according to the report by the Project on Student Debt, which pointed out that unemployment rates for those without college degrees were still higher.