| Africa | Antarctica | Asia | Europe | North America | Oceania | South America | |
|---|---|---|---|---|---|---|---|
|
Gary BrownGold Member
|
2016 | 2013 | 2015 | 2011 | 2012 | 2016 | 2013 |
|
Tom MasonGold Member
|
2019 | 2023 | 2018 | 2022 | 2019 | 2022 | 2022 |
|
John WardellSilver Member
|
2008 | 2009 | 2006 | 2006 | 2007 | 2010 | 2010 |