| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 2026/2027 | 4.083 | 吨/公顷 | 2026-9 |
| 2025/2026 | 3.982 | 吨/公顷 | 2026-9 |
| 2024/2025 | 3.125 | 吨/公顷 | 2026-9 |
| 2023/2024 | 4.05 | 吨/公顷 | 2026-9 |
| 2022/2023 | 2.463 | 吨/公顷 | 2026-9 |
| 2021/2022 | 3.892 | 吨/公顷 | 2026-9 |
| 2020/2021 | 2.098 | 吨/公顷 | 2026-9 |
| 2019/2020 | 3.17 | 吨/公顷 | 2026-9 |
| 2018/2019 | 2.734 | 吨/公顷 | 2026-9 |
| 2017/2018 | 3.074 | 吨/公顷 | 2026-9 |
| 2016/2017 | 3.084 | 吨/公顷 | 2026-9 |
| 2015/2016 | 2.131 | 吨/公顷 | 2026-9 |
| 2014/2015 | 2.302 | 吨/公顷 | 2026-9 |
| 2013/2014 | 2.096 | 吨/公顷 | 2026-9 |
| 2012/2013 | 1.297 | 吨/公顷 | 2026-9 |
| 2011/2012 | 1.865 | 吨/公顷 | 2026-9 |
| 2010/2011 | 1.576 | 吨/公顷 | 2026-9 |
| 2009/2010 | 1.673 | 吨/公顷 | 2026-9 |
| 2008/2009 | 2.695 | 吨/公顷 | 2026-9 |
| 2007/2008 | 0.898 | 吨/公顷 | 2026-9 |
| 2006/2007 | 1.835 | 吨/公顷 | 2026-9 |
| 2005/2006 | 1.782 | 吨/公顷 | 2026-9 |
| 2004/2005 | 2.144 | 吨/公顷 | 2026-9 |
| 2003/2004 | 0.722 | 吨/公顷 | 2026-9 |
| 2002/2003 | 1.956 | 吨/公顷 | 2026-9 |
| 2001/2002 | 2.357 | 吨/公顷 | 2026-9 |
| 2000/2001 | 1.238 | 吨/公顷 | 2026-9 |
| 1999/2000 | 1.743 | 吨/公顷 | 2026-9 |
| 1998/1999 | 2.889 | 吨/公顷 | 2026-9 |
| 1997/1998 | 2.264 | 吨/公顷 | 2026-9 |
| 1996/1997 | 2.593 | 吨/公顷 | 2026-9 |
| 1995/1996 | 3.009 | 吨/公顷 | 2026-9 |
| 1994/1995 | 2.481 | 吨/公顷 | 2026-9 |
| 1993/1994 | 3.468 | 吨/公顷 | 2026-9 |
| 1992/1993 | 3.375 | 吨/公顷 | 2026-9 |
| 1991/1992 | 3.187 | 吨/公顷 | 2026-9 |
| 1990/1991 | 3.492 | 吨/公顷 | 2026-9 |
| 1989/1990 | 3.45 | 吨/公顷 | 2026-9 |
| 1988/1989 | 3.102 | 吨/公顷 | 2026-9 |
| 1987/1988 | 2.791 | 吨/公顷 | 2026-9 |