77Q(1)(a): Copies of material amendments to the Trust's declaration of trust or
by-laws:

Amendment No. 46 dated November 8, 2007 to the Agreement and Declaration of
Trust dated January 28, 1997 is incorporated herein by reference to Exhibit
(a)(47) to Post-Effective Amendment No. 173 to registrant's registration
statement on Form N-1A filed with the Securities and Exchange Commission on
November 27, 2007 (Accession No. 0000950123-07-015968).

Amendment No. 47 dated November 8, 2007 to the Agreement and Declaration of
Trust dated January 28, 1997 is incorporated herein by reference to Exhibit
(a)(48) to Post-Effective Amendment No. 173 to registrant's registration
statement on Form N-1A filed with the Securities and Exchange Commission on
November 27, 2007 (Accession No. 0000950123-07-015968).

Amendment No. 48 dated December 13, 2007 to the Agreement and Declaration of
Trust dated January 28, 1997 is incorporated herein by reference to Exhibit
(a)(49) to Post-Effective Amendment No. 183 to registrant's registration
statement on Form N-1A filed with the Securities and Exchange Commission on
January 18, 2008 (Accession No. 0000950123-08-000557).