(Reuters) -Vanguard Group, the world's largest issuer of mutual funds, was fined and censured by the Financial Industry Regulatory Authority (FINRA) for errors appearing in about 8.5 million customer account statements. FINRA, Wall Street's self-regulatory organization, said in a filing signed last month by representatives of both parties that Vanguard overstated projected yield and projected annual income for nine money market funds from November 2019 to September 2020. "From at least October 2019 to June 2021, certain VMC account statements inaccurately presented market appreciation/depreciation and investment returns," the filing said.