| 1987 | 1987 | |
| 1988 | ||
| 1989 | ||
| 1990 | ||
| 1991 | ||
| 1992 | ||
| 1993 | December 1993 | |
| 1994 | April 1994 | |
| 1995 | April 1995 | December 1995 |
| 1996 | April 1996 | December 1996 |
| 1997 | April 1997 / September 1997 | |
| 1998 | ||
| 1999 | September 1999 | December 1999 |
| 2000 | ||
| 2001 | December 2001 | |
| 2002 | April 2002 | December 2002 |
| 2003 | April 2003 | December 2003 |
| 2004 | May 2004 | December 2004 |
| 2005 | June 2005 | December 2005 |
| 2006 | May 2006 | December 2006 |
| 2007 | May 2007 | December 2007 |
| 2008 | Mar 2008 Summer 2008 | December 2008 |
| 2009 | Jan 2009 | |