Total U.S. money-market mutual fund assets rose $13.09 billion to $2.57 trillion for the week that ended Wednesday, according to the Investment Company Institute.

The seven-day average yield on money-market mutual funds was unchanged at 0.01 percent from the previous week, according to Money Fund Report.

The online service Bankrate.com said its survey of 100 leading commercial banks, savings and loan associations and savings banks in the nation’s 10 largest markets showed the annual percentage yield available on money-market accounts was unchanged from the week before at 0.11 percent.

The North Palm Beach, Fla.-based unit of Bankrate said the annual percentage yield available on interest-bearing checking accounts was unchanged from the week before at 0.06 percent. The annual percentage yield on six-month certificates of deposit was unchanged at 0.15 percent. One-year CD yields were unchanged at 0.23 percent, two-year CD yields were flat at 0.36 percent and the five-year yield was unchanged at 0.79 percent.