| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 2026/2027 | 1 | 吨/公顷 | 2026-9 |
| 2025/2026 | 1 | 吨/公顷 | 2026-9 |
| 2024/2025 | 1 | 吨/公顷 | 2026-9 |
| 2023/2024 | 1 | 吨/公顷 | 2026-9 |
| 2022/2023 | 1 | 吨/公顷 | 2026-9 |
| 2021/2022 | 1 | 吨/公顷 | 2026-9 |
| 2020/2021 | 1 | 吨/公顷 | 2026-9 |
| 2019/2020 | 1 | 吨/公顷 | 2026-9 |
| 2018/2019 | 1 | 吨/公顷 | 2026-9 |
| 2017/2018 | 1 | 吨/公顷 | 2026-9 |
| 2016/2017 | 1 | 吨/公顷 | 2026-9 |
| 2015/2016 | 1 | 吨/公顷 | 2026-9 |
| 2014/2015 | 1.2 | 吨/公顷 | 2026-9 |
| 2013/2014 | 1.2 | 吨/公顷 | 2026-9 |
| 2012/2013 | 0.958 | 吨/公顷 | 2026-9 |
| 2011/2012 | 0.958 | 吨/公顷 | 2026-9 |
| 2010/2011 | 1.179 | 吨/公顷 | 2026-9 |
| 2009/2010 | 1.083 | 吨/公顷 | 2026-9 |
| 2008/2009 | 0.313 | 吨/公顷 | 2026-9 |
| 2007/2008 | 0.844 | 吨/公顷 | 2026-9 |
| 2006/2007 | 1.158 | 吨/公顷 | 2026-9 |
| 2005/2006 | 1.158 | 吨/公顷 | 2026-9 |
| 2004/2005 | 0.3 | 吨/公顷 | 2026-9 |
| 2003/2004 | 0.2 | 吨/公顷 | 2026-9 |
| 2002/2003 | 0.12 | 吨/公顷 | 2026-9 |
| 2001/2002 | 1.161 | 吨/公顷 | 2026-9 |
| 2000/2001 | 0.478 | 吨/公顷 | 2026-9 |
| 1999/2000 | 0.556 | 吨/公顷 | 2026-9 |
| 1998/1999 | 0.697 | 吨/公顷 | 2026-9 |
| 1997/1998 | 0.5 | 吨/公顷 | 2026-9 |
| 1996/1997 | 0.571 | 吨/公顷 | 2026-9 |
| 1995/1996 | 0.625 | 吨/公顷 | 2026-9 |
| 1994/1995 | 0.833 | 吨/公顷 | 2026-9 |
| 1993/1994 | 0.179 | 吨/公顷 | 2026-9 |