| Year | Number of Cases |
|---|---|
| 2000 | 1 |
| 2004 | 1 |
| 2008 | 1 |
| 2009 | 2 |
| 2013 | 1 |
| 2015 | 1 |
| 2016 | 1 |
| 2018 | 4 |
| 2020 | 1 |
| 2021 | 21 |
| 2022 | 19 |
| 2023 | 18 |
| 2024 | 21 |
| 2025 | 14 |
| 2026 | 2 |
| Year | Number of Cases |
|---|---|
| 2000 | 1 |
| 2004 | 1 |
| 2008 | 1 |
| 2009 | 2 |
| 2013 | 1 |
| 2015 | 1 |
| 2016 | 1 |
| 2018 | 4 |
| 2020 | 1 |
| 2021 | 21 |
| 2022 | 19 |
| 2023 | 18 |
| 2024 | 21 |
| 2025 | 14 |
| 2026 | 2 |