| 2015 | January | April | |||
| 2014 | June | ||||
| 2013 | April | July | |||
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| 2012 | Spring | Summer | Winter | ||
| 2011 | Spring | Summer | Autumn | Winter | |
| 2010 | Summer | Winter | |||
| 2009 | Summer | Winter |
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| 2008 | Spring/Summer | Winter | |||
| 2007 | March | June | September |
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| 2006 |
December | ||||
| 2005 | March | September | December | ||
| 2003 | March | September | |||
| 2002 | December | ||||
| 2001 | August | November/December | |||
| 2000 | December | ||||