| 2015 | ||
| Winter | Summer | |
| 2014 | ||
| Fall | ||
| 2013 | ||
| Winter | Summer | |
| 2012 | ||
| Winter | Summer | |
| 2011 | ||
| Summer | ||
| 2010 | ||
| Summer | Winter | |
| 2009 | ||
| Winter | ||
| 2008 | ||
| Summer | Spring | Special Membership Edition |
| 2007 | ||
| Summer | ||
| 2006 | ||
| Summer | Fall | Spring |
| 2005 | ||
| Winter | Summer | |
| 2004 | ||
| Summer | Spring | Fall |
| 2003 | ||
| Summer | Winter | |
| 2002 | ||
| Winter | Summer | Fall |
| 2001 | ||
| Winter | Summer |