| Year | Answer | % Correct |
|---|---|---|
| 2024 | 10-3 | 100%
|
| 2022 | 11-2 | 100%
|
| 2020 | 3-7 | 100%
|
| 2017 | 4-8 | 100%
|
| 2018 | 5-7 | 100%
|
| 2013 | 5-7 | 100%
|
| 2012 | 5-7 | 100%
|
| 2011 | 5-7 | 100%
|
| 2010 | 6-7 | 100%
|
| 2021 | 7-6 | 100%
|
| 2014 | 7-6 | 100%
|
| 2019 | 8-5 | 100%
|
| 2023 | 9-4 | 100%
|
| 2016 | 9-4 | 100%
|
| 2015 | 9-4 | 100%
|