Average Annual Total Returns [further-information] As of 03/31/2019

Month EndAs of 05/31/2019 1 Yr 3 Yr 5 Yr 10 Yr Since Inception Inception 10/03/1988
Fund without Sales Charge (%) (NAV) 4.40 1.72 2.34 3.55 4.90
Fund with Sales Charge (%) (POP) 4.40 1.72 2.34 3.55 4.90
Bloomberg Barclays Municipal Bond Index (%) 6.40 2.97 3.58 4.58 5.85
Quarter EndAs of 03/31/2019 1 Yr 3 Yr 5 Yr 10 Yr Since Inception Inception 10/03/1988
Fund without Sales Charge (%) (NAV) 3.39 1.50 2.56 3.82 4.88
Fund with Sales Charge (%) (POP) 3.39 1.50 2.56 3.82 4.88
Bloomberg Barclays Municipal Bond Index (%) 5.38 2.71 3.73 4.72 5.82

Calendar Year Returns

2018 2017
Fund without Sales Charge (%) (NAV) 1.00 2.04
Fund with Sales Charge (%) (POP) 1.00 2.04
Bloomberg Barclays Municipal Bond Index (%) 1.28 5.45

Cumulative Total Returns [further-information] As of 03/31/2019

Month EndAs of 05/31/2019 YTD 1 Yr 3 Yr 5 Yr 10 Yr Since Inception since 10/03/1988
Fund without Sales Charge (%) (NAV) 3.31 4.40 5.25 12.24 41.72 333.49
Fund with Sales Charge (%) (POP) 3.31 4.40 5.25 12.24 41.72 333.49
Bloomberg Barclays Municipal Bond Index (%) 4.71 6.40 9.16 19.25 56.53 471.49
Quarter EndAs of 03/31/2019 YTD 1 Yr 3 Yr 5 Yr 10 Yr Since Inception since 10/03/1988
Fund without Sales Charge (%) (NAV) 1.83 3.39 4.57 13.46 45.54 327.28
Fund with Sales Charge (%) (POP) 1.83 3.39 4.57 13.46 45.54 327.28
Bloomberg Barclays Municipal Bond Index (%) 2.90 5.38 8.35 20.12 58.55 461.61

After-Tax Average Annual Total Returns [further-information] As of 03/31/2019

Month EndAs of 05/31/2019 1 YR 3 YR 5 YR 10 YR
Fund without Sales Charge (%) (NAV) Before Shares Sold 4.40 1.72 2.34 3.55
Fund without Sales Charge (%) (NAV) After Shares Sold 4.05 2.12 2.62 3.64
Fund with Sales Charge (%) (POP) Before Shares Sold 4.40 1.72 2.34 3.55
Fund with Sales Charge (%) (POP) After Shares Sold 4.05 2.12 2.62 3.64
Quarter EndAs of 03/31/2019 1 YR 3 YR 5 YR 10 YR
Fund without Sales Charge (%) (NAV) Before Shares Sold 3.39 1.50 2.56 3.82
Fund without Sales Charge (%) (NAV) After Shares Sold 3.38 1.95 2.80 3.88
Fund with Sales Charge (%) (POP) Before Shares Sold 3.39 1.50 2.56 3.82
Fund with Sales Charge (%) (POP) After Shares Sold 3.38 1.95 2.80 3.88

SALES CHARGE, EXPENSES & FEES As of 09/10/2018 (updated annually)

Gross Expense Ratio 0.73%
Net Expense Ratio [further-information] 0.61%
Max Initial Sales Charge 0.00%
CDSC

Volatility Measures [further-information] As of 05/31/2019 Updated Monthly, based on a 3-year period

Beta 0.67
Sharpe Ratio 0.14
Standard Deviation 2.47

Benchmarks

A benchmark is a comparable broad-based index that can be used to evaluate a fund's performance.

  • Bloomberg Barclays Municipal Bond Index

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