The quality of the GSEs’ portfolios continues to improve as the credit quality of new single-family business remains strong and delinquencies are down, according to the Federal Housing Finance Agency’s performance and accountability report for fiscal year 2016. But the agency said potential for a Treasury draw still looms. The report, released last week covers from October 2015 to September 2016 and highlights performance goals from the year. The average new single-family loan holds a weighted average credit score in the high 740s. There’s been a big improvement in delinquencies as loans that were seriously delinquent dropped considerably, down to 321,000. That’s a 25 percent decrease from a year earlier, when there were 426,000 seriously delinquent loans.