| 年度 | 数值 | 单位 | 发布日期 |
| 2026/2027 | 5.627 | 吨/公顷 | 2026-9 |
| 2025/2026 | 6.059 | 吨/公顷 | 2026-9 |
| 2024/2025 | 5.33 | 吨/公顷 | 2026-9 |
| 2023/2024 | 5.566 | 吨/公顷 | 2026-9 |
| 2022/2023 | 5.504 | 吨/公顷 | 2026-9 |
| 2021/2022 | 5.7 | 吨/公顷 | 2026-9 |
| 2020/2021 | 5.515 | 吨/公顷 | 2026-9 |
| 2019/2020 | 5.697 | 吨/公顷 | 2026-9 |
| 2018/2019 | 5.179 | 吨/公顷 | 2026-9 |
| 2017/2018 | 5.609 | 吨/公顷 | 2026-9 |
| 2016/2017 | 5.155 | 吨/公顷 | 2026-9 |
| 2015/2016 | 5.982 | 吨/公顷 | 2026-9 |
| 2014/2015 | 5.867 | 吨/公顷 | 2026-9 |
| 2013/2014 | 5.586 | 吨/公顷 | 2026-9 |
| 2012/2013 | 5.158 | 吨/公顷 | 2026-9 |
| 2011/2012 | 5.35 | 吨/公顷 | 2026-9 |
| 2010/2011 | 5.253 | 吨/公顷 | 2026-9 |
| 2009/2010 | 5.374 | 吨/公顷 | 2026-9 |
| 2008/2009 | 5.662 | 吨/公顷 | 2026-9 |
| 2007/2008 | 4.858 | 吨/公顷 | 2026-9 |
| 2006/2007 | 5.095 | 吨/公顷 | 2026-9 |
| 2005/2006 | 5.117 | 吨/公顷 | 2026-9 |
| 2004/2005 | 5.639 | 吨/公顷 | 2026-9 |
| 2003/2004 | 4.545 | 吨/公顷 | 2026-9 |
| 2002/2003 | 5.013 | 吨/公顷 | 2026-9 |
| 2001/2002 | 4.749 | 吨/公顷 | 2026-9 |
| 2000/2001 | 4.97 | 吨/公顷 | 2026-9 |
| 1999/2000 | 4.963 | 吨/公顷 | 2026-9 |