The main content of this page starts here
| Year | Number of living female breeding animals | Number of living male breeding animals |
|---|---|---|
| 2009 | 18 | 1 |
| 2010 | 16 | 1 |
| 2011 | 18 | 1 |
| 2012 | 20 | 2 |
| 2013 | 21 | 1 |
| 2014 | 20 | 2 |
| 2015 | 19 | - |
| 2017 | 6 | - |
| 2019 | 1 | 1 |
| 2020 | 1 | 1 |
| 2021 | 2 | - |
| 2022 | 1 | - |
| 2023 | 1 | - |
| 2024 | 4 | - |