| St. Louis -- August 2007 | Champaign IL -- May 2008 | St. Louis -- August 2008 |
| Fort Wayne IN -- September 2008 | Champaign IL -- May 2009 | St. Louis -- August 2009 |
| Fort Wayne IN -- September 2009 | St. Louis -- August 2010 |
Fort Wayne IN -- September 2010 |
| Champaign IL -- May 2011 | St. Louis -- August 2011 | Champaign IL -- May 2012 |
| St. Louis -- August 2012 | Fort Wayne IN - October 2012 | Champaign IL -- May 2013 |
| St. Louis -- August 2013 | Champaign IL -- May 2014 | St. Louis -- August 2014 |
| Champaign IL -- May 2015 | St. Louis -- July 2015 | Champaign IL -- May 2016 |
| St. Louis -- August 2016 | Champaign IL -- May 2017 | St, Louis -- August 2017 |
| Champaign IL -- May 2018 | St. Louis -- August 2018 | Champaign IL -- May 2019 |
| St, Louis -- August 2019 | Online -- September 2020 | Online -- March 2021 |
| Online -- September 2021 | Online -- October 2022 | Online -- June 2023 |
| Online -- November 2023 | ||