1.  American Municipal Securities, Inc.: Letter from John C. Petagna, Jr., President, dated April 26, 2011

2.  Barker, Bill: E-mail dated April 18, 2011

3.  Bond Dealers of America: Letter from Mike Nicholas, Chief Executive Officer, dated April 21, 2011

4.  Chapdelaine & Co.: Letter from August J. Hoerrner, President, dated May 5, 2011

5.  Conners & Company, Inc.: E-mail from Jay White dated April 13, 2011

6.  Foard, Dale: E-mail dated April 21, 2011

7.  Hartfield, Titus & Donnelly, LLC: Letter from Mark J. Epstein, President and Chief Executive Officer, dated April 21, 2011

8.  KeyBanc Capital Markets Inc.: E-mail from Michael A. Burrello, Managing Director, Municipal Trading and Underwriting, dated April 21, 2011

9.  Kiley Partners, Inc.: E-mail from Michael Kiley dated April 12, 2011

10.  Knight BondPoint: Letter from Marshall Nicholson, Managing Director, dated April 21, 2011

11.  M.E. Allison & Co., Inc.: E-mail from Christopher R. Allison, Chief Financial Officer, dated April 20, 2011

12.  National Alliance Securities: E-mail from Bob Barnette, Municipal Trader, dated April 21, 2011

13.  Oppenheimer & Co., Inc.: Letter from Marty Campbell, Senior Director, Municipal Underwriting & Trading

14.  Potratz, Jay: E-mail dated April 21, 2011

15.  R. Seelaus & Co., Inc.: E-mail from Richard Seelaus dated April 13, 2011

16.  Regional Brokers, Inc.: Letter from Joseph A. Hemphill, III, CEO, and H. Deane Armstrong, CCO, dated April 21, 2011

17.  Regional Brokers, Inc.: Letter from Joseph A. Hemphill, III, President and CEO, and H. Deane Armstrong, CCO, dated May 12, 2011

18.  RH Investment Corporation: Letter from Andrew L. "Bud" Byrnes, III, Chief Executive Officer, dated April 21, 2011

19.  Robbins, Leonard Jack: Letter dated May 1, 2011

20.  RW Smith & Associates, Inc.: Letter from Paige W. Pierce, President and CEO, dated April 27, 2011

21.  Securities Industry and Financial Markets Association: Letter from Leslie M. Norwood, Managing Director and Associate General Counsel, dated April 29, 2011

22.  Securities Industry and Financial Markets Association: Letter from Leslie M. Norwood, Managing Director and Associate General Counsel, dated April 29, 2011

23.  Seidel & Shaw, LLC: Letter from Thomas W. Shaw, President

24.  Sentinel Brokers Company, Inc.: E-mail from Joseph M. Lawless, President, dated April 12, 2011

25.  Sentinel Brokers Company, Inc.: E-mail from Joseph M. Lawless, President, dated April 13, 2011

26.  Seven Points Capital: E-mail from Jerry Racasi dated April 13, 2011

27.  Stifel, Nicolaus & Company, Incorporated: E-mail from Andy Jackson dated April 20, 2011

28.  Stoever Glass & Co.: Letter from Frederick J. Stoever, President, dated April 15, 2011

29.  TheMuniCenter, LLC: Letter from Thomas S. Vales, Chief Executive Officer, dated April 21, 2011

30.  Tradeweb Markets LLC: Letter from John Cahalane, Managing Director, Head of Tradeweb Retail, dated May 3, 2011

31.  Walsh, John: E-mail dated April 21, 2011

32.  Wiley Bros.-Aintree Capital, LLC: E-mail from Keener Billups, Managing Director, dated April 26, 2011, corrects Wiley Bros.-Aintree Capital, LLC: E-mail from Keener Billups, Managing Director, dated April 13, 2011

33.  William Blair: E-mail from Tom Greene dated April 21, 2011

34.  Welbourn, Steve: E-mail dated April 21, 2011

35.  Wolfe & Hurst Bond Brokers, Inc.: Letter from O. Gene Hurst, President, dated April 25, 2011, corrects Wolfe & Hurst Bond Brokers, Inc.: Letter from O. Gene Hurst, President, dated April 21, 2011

36.  Ziegler Capital Markets: E-mail from Kathleen R. Murphy dated April 13, 2011