National Limited Maturity Municipal Income Fund (I)

1. A portion of the Fund's distributions generally will be subject to alternative minimum tax.
2. Bloomberg Municipal Short-Intermediate 1-10 Year Index is an unmanaged index of municipal bonds traded in the U.S. with maturities ranging from 1-10 years. Unless otherwise stated, index returns do not reflect the effect of any applicable sales charges, commissions, expenses, taxes or leverage, as applicable. It is not possible to invest directly in an index. Historical performance of the index illustrates market trends and does not represent the past or future performance of the fund.
3. Source: Fund prospectus.
4. Percent of total net assets.
5. Top 10 holdings represents the largest holdings by CUSIP.

2. Bloomberg Municipal Short-Intermediate 1-10 Year Index is an unmanaged index of municipal bonds traded in the U.S. with maturities ranging from 1-10 years. Unless otherwise stated, index returns do not reflect the effect of any applicable sales charges, commissions, expenses, taxes or leverage, as applicable. It is not possible to invest directly in an index. Historical performance of the index illustrates market trends and does not represent the past or future performance of the fund.
3. Source: Fund prospectus.
6. The Morningstar Muni National Short Category includes funds that invest in bonds issued by state and local governments that are free from federal taxes and typically have a duration of less than 4.5 years.
7. Distribution Rate at NAV and Market Price is calculated by dividing the last distribution paid per share (annualized) by NAV or market price, respectively. For National Municipal Funds, Taxable-Equivalent Distribution Rate at NAV and Market Price is calculated using a 40.8% tax rate (equals maximum individual federal tax rate adjusted for the Medicare surtax). For Single-State Municipal Funds, Taxable-Equivalent Distribution Rates also reflect maximum effective individual state income tax rates. Local income taxes that may apply are not considered.
8. For National Municipal Funds, taxable-equivalent performance is calculated using a 40.8% tax rate (equals maximum individual federal tax rate adjusted for the Medicare surtax). For Single-State Municipal Funds, taxable-equivalent performance also reflect maximum effective individual state income tax rates. Local income taxes that may apply are not considered. The Fund's monthly distribution may be comprised of ordinary income, net realized capital gains and returns of capital.
9. The Fund's distributions may be comprised of tax-exempt income, ordinary income, net realized capital gains and return of capital. The Fund will determine the tax characteristics of all Fund distributions after the end of the calendar year and will provide shareholders such information at that time. Please consult your tax advisor for further information.

4. Percent of total net assets.
10. A delay in transaction settlement may result in a negative cash position.
11. Percent of bond holdings.
12. In the event a municipal bond has dual exemption in more than one state, the primary state as classified by Bloomberg will be shown.
13. The following list reflects unaudited securities holdings (excluding derivatives positions). Holdings information may differ if presented as of trade date. Due to rounding, holdings of less than 0.005% may show as 0.00%. Portfolio information subject to change due to active management.