Here's some previous short thoughts:

By date:

Current
January-March 2006
October-December 2005
July-September 2005
April-June 2005
January-March 2005
October-December 2004
July-September 2004
April-June 2004
January-March 2004
October-December 2003
July-September 2003
April-June 2003
January-March 2003
October-December 2002
July-September 2002
April-June 2002
January-March 2002
October-December 2001
July-September 2001
April-June 2001
January-March 2001
October-December 2000
July-September 2000
March-June 2000