| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 2026/2027 | 2.5 | 吨/公顷 | 2026-9 |
| 2025/2026 | 2.6 | 吨/公顷 | 2026-9 |
| 2024/2025 | 2 | 吨/公顷 | 2026-9 |
| 2023/2024 | 3 | 吨/公顷 | 2026-9 |
| 2022/2023 | 2.667 | 吨/公顷 | 2026-9 |
| 2021/2022 | 4.119 | 吨/公顷 | 2026-9 |
| 2020/2021 | 2.277 | 吨/公顷 | 2026-9 |
| 2019/2020 | 4.085 | 吨/公顷 | 2026-9 |
| 2018/2019 | 4.619 | 吨/公顷 | 2026-9 |
| 2017/2018 | 2.815 | 吨/公顷 | 2026-9 |
| 2016/2017 | 3.873 | 吨/公顷 | 2026-9 |
| 2015/2016 | 3.673 | 吨/公顷 | 2026-9 |
| 2014/2015 | 2.699 | 吨/公顷 | 2026-9 |
| 2013/2014 | 2.744 | 吨/公顷 | 2026-9 |
| 2012/2013 | 1.526 | 吨/公顷 | 2026-9 |
| 2011/2012 | 2.627 | 吨/公顷 | 2026-9 |
| 2010/2011 | 2.103 | 吨/公顷 | 2026-9 |
| 2009/2010 | 2.1 | 吨/公顷 | 2026-9 |
| 2008/2009 | 2.071 | 吨/公顷 | 2026-9 |
| 2007/2008 | 1.5 | 吨/公顷 | 2026-9 |