. . "The fund invests mainly in bonds that pay interest that is exempt from federal income tax and Pennsylvania personal income tax (but that may be subject to federal alternative minimum tax (AMT)), are investment-grade in quality, and have intermediate- to long-term maturities (three years or longer).Growth of $10,000 (10 Years)Total Return4.43%Yield (Trailing 12 Mo.)3.04%Expense Ratio1.06%Front Load" . .