| 2007 | 2008 | 2009 | 2010 | 2011 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Glas Cymru 2007 | Glas Cymru 2008 | Glas Cymru 2009 | Glas Cymru 2010 | Glas Cymru 2011 | Glas Cymru 2012 | Glas Cymru 2013 | Glas Cymru 2014 | Glas Cymru 2015 | Glas Cymru 2016 | Glas Cymru 2017 | Glas Cymru 2018 | Glas Cymru 2019 | Glas Cymru 2020 | Glas Cymru 2021 | Glas Cymru 2022 | Glas Cymru 2023 | Glas Cymru 2024 | Glas Cymru 2025 |