| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 2026/2027 | 4.444 | 吨/公顷 | 2026-9 |
| 2025/2026 | 3.778 | 吨/公顷 | 2026-9 |
| 2024/2025 | 2.3 | 吨/公顷 | 2026-9 |
| 2023/2024 | 4 | 吨/公顷 | 2026-9 |
| 2022/2023 | 5.25 | 吨/公顷 | 2026-9 |
| 2021/2022 | 3.546 | 吨/公顷 | 2026-9 |
| 2020/2021 | 3.7 | 吨/公顷 | 2026-9 |
| 2019/2020 | 4.1 | 吨/公顷 | 2026-9 |
| 2018/2019 | 3.375 | 吨/公顷 | 2026-9 |
| 2017/2018 | 3.375 | 吨/公顷 | 2026-9 |
| 2016/2017 | 4.5 | 吨/公顷 | 2026-9 |
| 2015/2016 | 4.167 | 吨/公顷 | 2026-9 |
| 2014/2015 | 2.421 | 吨/公顷 | 2026-9 |
| 2013/2014 | 3.25 | 吨/公顷 | 2026-9 |
| 2012/2013 | 2.769 | 吨/公顷 | 2026-9 |
| 2011/2012 | 2.4 | 吨/公顷 | 2026-9 |
| 2010/2011 | 1.588 | 吨/公顷 | 2026-9 |
| 2009/2010 | 1.8 | 吨/公顷 | 2026-9 |
| 2008/2009 | 1.714 | 吨/公顷 | 2026-9 |
| 2007/2008 | 1.6 | 吨/公顷 | 2026-9 |
| 2006/2007 | 1.5 | 吨/公顷 | 2026-9 |
| 2005/2006 | 1 | 吨/公顷 | 2026-9 |