Average Annual Total Returns [further-information] As of 03/31/2020

Month EndAs of 05/31/2020 1 Yr 3 Yr 5 Yr 10 Yr Since InceptionInception 09/01/1987
Fund without Sales Charge (%) (NAV) 1.88 2.51 2.51 3.23 5.40
Fund with Sales Charge (%) (POP) 1.88 2.51 2.51 3.23 5.40
Bloomberg Barclays Municipal Bond Index (%) 3.98 3.81 3.74 4.14 5.87
Quarter EndAs of 03/31/2020 1 Yr 3 Yr 5 Yr 10 Yr Since InceptionInception 09/01/1987
Fund without Sales Charge (%) (NAV) 3.51 2.84 2.38 3.38 5.42
Fund with Sales Charge (%) (POP) 3.51 2.84 2.38 3.38 5.42
Bloomberg Barclays Municipal Bond Index (%) 3.85 3.96 3.19 4.14 5.85

Calendar Year Returns

2019 2018 2017
Fund without Sales Charge (%) (NAV) 6.00 1.81 1.92
Fund with Sales Charge (%) (POP) 6.00 1.81 1.92
Bloomberg Barclays Municipal Bond Index (%) 7.54 1.28 5.45

Cumulative Total Returns [further-information] As of 03/31/2020

Month EndAs of 05/31/2020 YTD 1 Yr 3 Yr 5 Yr 10 Yr Since Inception since 09/01/1987
Fund without Sales Charge (%) (NAV) -0.04 1.88 7.72 13.21 37.37 459.12
Fund with Sales Charge (%) (POP) -0.04 1.88 7.72 13.21 37.37 459.12
Bloomberg Barclays Municipal Bond Index (%) 1.24 3.98 11.87 20.17 49.98 548.50
Quarter EndAs of 03/31/2020 YTD 1 Yr 3 Yr 5 Yr 10 Yr Since Inception since 09/01/1987
Fund without Sales Charge (%) (NAV) -0.20 3.51 8.77 12.49 39.41 458.18
Fund with Sales Charge (%) (POP) -0.20 3.51 8.77 12.49 39.41 458.18
Bloomberg Barclays Municipal Bond Index (%) -0.63 3.85 12.35 17.00 50.11 536.49

After-Tax Average Annual Total Returns [further-information] As of 03/31/2020

Month EndAs of 05/31/2020 1 YR 3 YR 5 YR 10 YR
Fund without Sales Charge (%) (NAV) Before Shares Sold 1.88 2.51 2.51 3.21
Fund without Sales Charge (%) (NAV) After Shares Sold 2.51 2.79 2.81 3.42
Fund with Sales Charge (%) (POP) Before Shares Sold 1.88 2.51 2.51 3.21
Fund with Sales Charge (%) (POP) After Shares Sold 2.51 2.79 2.81 3.42
Quarter EndAs of 03/31/2020 1 YR 3 YR 5 YR 10 YR
Fund without Sales Charge (%) (NAV) Before Shares Sold 3.51 2.84 2.38 3.37
Fund without Sales Charge (%) (NAV) After Shares Sold 3.57 3.06 2.71 3.55
Fund with Sales Charge (%) (POP) Before Shares Sold 3.51 2.84 2.38 3.37
Fund with Sales Charge (%) (POP) After Shares Sold 3.57 3.06 2.71 3.55

SALES CHARGE, EXPENSES & FEES As of 07/01/2020 (updated annually)

Gross Expense Ratio 0.58%
Net Expense Ratio [further-information] 0.56%
Max Initial Sales Charge 0.00%
CDSC

Volatility Measures [further-information] As of 06/30/2020 Updated Monthly, based on a 3-year period

Beta 0.73
Sharpe Ratio 0.47
Standard Deviation 2.99

Benchmarks

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

  • Bloomberg Barclays Municipal Bond Index