| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 2026/2027 | 1 | 吨/公顷 | 2026-9 |
| 2025/2026 | 1.057 | 吨/公顷 | 2026-9 |
| 2024/2025 | 0.971 | 吨/公顷 | 2026-9 |
| 2023/2024 | 1.033 | 吨/公顷 | 2026-9 |
| 2022/2023 | 0.967 | 吨/公顷 | 2026-9 |
| 2021/2022 | 0.807 | 吨/公顷 | 2026-9 |
| 2020/2021 | 0.828 | 吨/公顷 | 2026-9 |
| 2019/2020 | 0.833 | 吨/公顷 | 2026-9 |
| 2018/2019 | 1.2 | 吨/公顷 | 2026-9 |
| 2017/2018 | 1.214 | 吨/公顷 | 2026-9 |
| 2016/2017 | 1.4 | 吨/公顷 | 2026-9 |
| 2015/2016 | 1.4 | 吨/公顷 | 2026-9 |
| 2014/2015 | 1.25 | 吨/公顷 | 2026-9 |
| 2013/2014 | 1.286 | 吨/公顷 | 2026-9 |
| 2012/2013 | 1.308 | 吨/公顷 | 2026-9 |
| 2011/2012 | 1 | 吨/公顷 | 2026-9 |
| 2010/2011 | 1 | 吨/公顷 | 2026-9 |
| 2009/2010 | 1.2 | 吨/公顷 | 2026-9 |
| 2008/2009 | 1.033 | 吨/公顷 | 2026-9 |
| 2007/2008 | 0.839 | 吨/公顷 | 2026-9 |
| 2006/2007 | 2 | 吨/公顷 | 2026-9 |
| 2005/2006 | 1.88 | 吨/公顷 | 2026-9 |
| 2004/2005 | 1.033 | 吨/公顷 | 2026-9 |
| 2003/2004 | 0.767 | 吨/公顷 | 2026-9 |
| 2002/2003 | 0.649 | 吨/公顷 | 2026-9 |
| 2001/2002 | 0.853 | 吨/公顷 | 2026-9 |
| 2000/2001 | 0.778 | 吨/公顷 | 2026-9 |