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Portfolio securities and other financial instruments for which market quotations are readily available are stated at market value. Market value is generally determined on the basis of last reported sales prices, or if no sales are reported, based on quotes obtained from a quotation reporting system, established market makers, or independent pricing services.

Portfolio securities and other financial instruments for which market quotations are not readily available or for which a development/event occurs that may significantly impact the value of a security, are fair-valued, in good faith, pursuant to procedures established by the Board of Trustees, or persons acting at their discretion pursuant to procedures established by the Board of Trustees. The Fund’s investments are valued daily using prices supplied by an independent pricing service or dealer quotations, or by using the last sale price on the exchange that is the primary market for such securities, or the last quoted mean price for those securities for which the over-the-counter market is the primary market or for listed securities in which there were no sales. Independent pricing services use information provided by market makers or estimates of market values obtained from yield data relating to investments or securities with similar characteristics. Exchange-traded futures and options on futures are valued at the settlement price determined by the relevant exchange. Securities purchased on a when-issued or delayed-delivery basis are marked to market daily until settlement at the forward settlement value. Short-term securities maturing in 60 days or less are valued at amortized cost, if their original term to maturity was 60 days or less, or by amortizing their value on the 61st day prior to maturity, if the original term to maturity exceeded 60 days.

The prices used by the Fund to value securities may differ from the value that would be realized if the securities were sold and these differences could be material. The Fund’s net asset value is normally determined as of the close of regular trading (normally, 4:00 p.m. Eastern time) on the New York Stock Exchange (“NYSE”) on each day the NYSE is open for business.

(a)

Private Placement—Restricted as to resale and may not have a readily available market. Securities with an aggregate value of $5,971,085, representing 3.1% of total investments.

(b)

144A Security—Exempt from registration under Rule 144A of the Securities Act of 1933. These securities may be resold in transactions exempt from registration, typically only to qualified institutional buyers. Unless otherwise indicated, these securities are not considered to be illiquid.

(c)

Delayed-delivery security. To be settled/delivered after August 31, 2009.

(d)

Variable Rate Notes—Instruments whose interest rates change on specified date (such as a coupon date or interest payment date) and/or whose interest rates vary with changes in a designated base rate (such as the prime interest rate). The interest rate disclosed reflects the rate in effect on August 31, 2009.

(e)

All or partial amount segregated as collateral for reverse repurchase agreements.

(f)

Residual Interest Bonds held in Trust—Securities represent underlying bonds transferred to a separate securitization trust established in a tender option bond transaction in which the Fund acquired the residual interest certificates. These securities serve as collateral in a financing transaction.

Glossary:

AMBAC—insured by American Municipal Bond Assurance Corp.

FGIC—insured by Financial Guaranty Insurance Co.

FHA—insured by Federal Housing Administration

FRN—Floating Rate Note. The interest rate disclosed reflects the rate in effect on August 31, 2009.

FSA—insured by Financial Security Assurance, Inc.

GNMA—insured by Government National Mortgage Association

GO—General Obligation Bond

NPFGC—insured by National Public Finance Guarantee Corporation

NR—Not Rated

Radian—insured by Radian Guaranty, Inc.

TCRS—Temporary Custodian Receipts