| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 2026/2027 | 2.476 | 吨/公顷 | 2026-9 |
| 2025/2026 | 2.476 | 吨/公顷 | 2026-9 |
| 2024/2025 | 2.5 | 吨/公顷 | 2026-9 |
| 2023/2024 | 2.526 | 吨/公顷 | 2026-9 |
| 2022/2023 | 2.451 | 吨/公顷 | 2026-9 |
| 2021/2022 | 2.486 | 吨/公顷 | 2026-9 |
| 2020/2021 | 2.488 | 吨/公顷 | 2026-9 |
| 2019/2020 | 2.291 | 吨/公顷 | 2026-9 |
| 2018/2019 | 2.292 | 吨/公顷 | 2026-9 |
| 2017/2018 | 2.263 | 吨/公顷 | 2026-9 |
| 2016/2017 | 2.189 | 吨/公顷 | 2026-9 |
| 2015/2016 | 2.368 | 吨/公顷 | 2026-9 |
| 2014/2015 | 2.057 | 吨/公顷 | 2026-9 |
| 2013/2014 | 1.968 | 吨/公顷 | 2026-9 |
| 2012/2013 | 2 | 吨/公顷 | 2026-9 |
| 2011/2012 | 1.895 | 吨/公顷 | 2026-9 |
| 2010/2011 | 1.455 | 吨/公顷 | 2026-9 |
| 2009/2010 | 1.333 | 吨/公顷 | 2026-9 |
| 2008/2009 | 1 | 吨/公顷 | 2026-9 |
| 2007/2008 | 1 | 吨/公顷 | 2026-9 |
| 2006/2007 | 0.667 | 吨/公顷 | 2026-9 |
| 2005/2006 | 0.333 | 吨/公顷 | 2026-9 |
| 2004/2005 | 0.333 | 吨/公顷 | 2026-9 |