| 年度 | 数值 | 单位 | 发布日期 |
| 2026/2027 | 7.096 | 吨/公顷 | 2026-9 |
| 2025/2026 | 6.713 | 吨/公顷 | 2026-9 |
| 2024/2025 | 6.734 | 吨/公顷 | 2026-9 |
| 2023/2024 | 6.555 | 吨/公顷 | 2026-9 |
| 2022/2023 | 6.468 | 吨/公顷 | 2026-9 |
| 2021/2022 | 6.658 | 吨/公顷 | 2026-9 |
| 2020/2021 | 6.74 | 吨/公顷 | 2026-9 |
| 2019/2020 | 6.976 | 吨/公顷 | 2026-9 |
| 2018/2019 | 6.952 | 吨/公顷 | 2026-9 |
| 2017/2018 | 6.898 | 吨/公顷 | 2026-9 |
| 2016/2017 | 6.839 | 吨/公顷 | 2026-9 |
| 2015/2016 | 6.776 | 吨/公顷 | 2026-9 |
| 2014/2015 | 6.642 | 吨/公顷 | 2026-9 |
| 2013/2014 | 6.483 | 吨/公顷 | 2026-9 |
| 2012/2013 | 6.748 | 吨/公顷 | 2026-9 |
| 2011/2012 | 6.407 | 吨/公顷 | 2026-9 |
| 2010/2011 | 6.378 | 吨/公顷 | 2026-9 |
| 2009/2010 | 6.912 | 吨/公顷 | 2026-9 |
| 2008/2009 | 6.097 | 吨/公顷 | 2026-9 |
| 2007/2008 | 6.507 | 吨/公顷 | 2026-9 |
| 2006/2007 | 6.291 | 吨/公顷 | 2026-9 |
| 2005/2006 | 6.419 | 吨/公顷 | 2026-9 |
| 2004/2005 | 6.615 | 吨/公顷 | 2026-9 |
| 2003/2004 | 6.577 | 吨/公顷 | 2026-9 |
| 2002/2003 | 6.488 | 吨/公顷 | 2026-9 |
| 2001/2002 | 6.431 | 吨/公顷 | 2026-9 |
| 2000/2001 | 6.076 | 吨/公顷 | 2026-9 |
| 1999/2000 | 6.724 | 吨/公顷 | 2026-9 |