|
| 2010 March/April 2010 January/February 2010 | 2009 November/December 2009 September/October 2009 July/August 2009 May/June 2009 March/April 2009 January/February 2009 |
| 2008 November/December 2008 September/October 2008 July/August 2008 May/June 2008 March/April 2008 January/February 2008 | 2007 November/December 2007 September/October 2007 July/August 2007 May/June 2007 March/April 2007 January/February 2007 |
| 2006 November/December 2006 September/October 2006 July/August 2006 May/June 2006 March/April 2006 Jan/Feb 2006 | 2005 July/August 2005 May/June 2005 March/April 2005 Jan/Feb 2005 |
| 2004 Nov/Dec 2004 Sept/Oct 2004 July/Aug 2004 May/June 2004 March/April 2004 January/February 2004 | 2003 November/December 2003 September/October 2003 July/August 2003 May/June 2003 March/April 2003 January/February 2003 |
| 2002 November/December 2002 September/October 2002 July/August 2002 May/June 2002 March/April 2002 January/February 2002 | 2001 November/December 2001 September/October 2001 March/April 2001 January/February 2001 |
| 2000 November/December 2000 September/October 2000 July/August 2000 May/June 2000 March/April 2000 January/February 2000 | 1999 November/December 1999 September/October 1999 March/April 1999 |
| 1998 March/April 1998 January/February 1998 | 1997 November/December 1997 July/August 1997 May/June 1997 March/April 1997 January/February 1997 |
| 1996 November/December 1996 September/October 1996 July/August 1996 May/June 1996 March/April 1996 January/February 1996 | 1995 November/December 1995 September/October 1995 |

