Issue #39 Apr 30, 1997 Issue #40 Dec 19, 1997 Issue #41 Jun 30, 1998 Issue #42 Mar 30, 1999 Issue #43 Nov 30, 1999 Issue #44 Jul 29, 2000 Issue #45 Apr 26, 2001 Issue #46 Nov 30, 2001 Issue #47 Nov 30, 2002 Issue #48 Jun 30, 2003 Issue #49 Jan 30, 2004 Issue #50 Sep 28, 2004 Issue #51 Sep 30, 2005 Issue #52 Jun 30, 2006 Issue #53 Feb 28, 2007 Issue #54 Nov 30, 2007 Issue #55 Jun 30, 2008 Issue #56 Apr 30, 2009 Issue #57 Dec 26, 2009 Issue #58 Jul 30, 2010