| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 2026/2027 | 2.429 | 吨/公顷 | 2026-9 |
| 2025/2026 | 2.357 | 吨/公顷 | 2026-9 |
| 2024/2025 | 2.338 | 吨/公顷 | 2026-9 |
| 2023/2024 | 2.243 | 吨/公顷 | 2026-9 |
| 2022/2023 | 2.309 | 吨/公顷 | 2026-9 |
| 2021/2022 | 1.857 | 吨/公顷 | 2026-9 |
| 2020/2021 | 2.169 | 吨/公顷 | 2026-9 |
| 2019/2020 | 2.167 | 吨/公顷 | 2026-9 |
| 2018/2019 | 1.514 | 吨/公顷 | 2026-9 |
| 2017/2018 | 1.896 | 吨/公顷 | 2026-9 |
| 2016/2017 | 1.808 | 吨/公顷 | 2026-9 |
| 2015/2016 | 1.792 | 吨/公顷 | 2026-9 |
| 2014/2015 | 2.027 | 吨/公顷 | 2026-9 |
| 2013/2014 | 2.055 | 吨/公顷 | 2026-9 |
| 2012/2013 | 1.786 | 吨/公顷 | 2026-9 |
| 2011/2012 | 1.8 | 吨/公顷 | 2026-9 |
| 2010/2011 | 1.8 | 吨/公顷 | 2026-9 |
| 2009/2010 | 1.8 | 吨/公顷 | 2026-9 |
| 2008/2009 | 1.875 | 吨/公顷 | 2026-9 |
| 2007/2008 | 1.8 | 吨/公顷 | 2026-9 |
| 2006/2007 | 1.8 | 吨/公顷 | 2026-9 |
| 2005/2006 | 1.8 | 吨/公顷 | 2026-9 |
| 2004/2005 | 1.8 | 吨/公顷 | 2026-9 |
| 2003/2004 | 1.02 | 吨/公顷 | 2026-9 |
| 2002/2003 | 1.2 | 吨/公顷 | 2026-9 |
| 2001/2002 | 0.833 | 吨/公顷 | 2026-9 |
| 2000/2001 | 0.633 | 吨/公顷 | 2026-9 |
| 1999/2000 | 0.5 | 吨/公顷 | 2026-9 |
| 1998/1999 | 0.929 | 吨/公顷 | 2026-9 |
| 1997/1998 | 1 | 吨/公顷 | 2026-9 |
| 1996/1997 | 0.667 | 吨/公顷 | 2026-9 |
| 1995/1996 | 0.611 | 吨/公顷 | 2026-9 |
| 1994/1995 | 0.625 | 吨/公顷 | 2026-9 |
| 1993/1994 | 0.79 | 吨/公顷 | 2026-9 |
| 1992/1993 | 0.929 | 吨/公顷 | 2026-9 |
| 1991/1992 | 1.022 | 吨/公顷 | 2026-9 |
| 1990/1991 | 1.046 | 吨/公顷 | 2026-9 |
| 1989/1990 | 1.063 | 吨/公顷 | 2026-9 |
| 1988/1989 | 1.132 | 吨/公顷 | 2026-9 |
| 1987/1988 | 1.132 | 吨/公顷 | 2026-9 |