| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 2026/2027 | 3.259 | 吨/公顷 | 2026-9 |
| 2025/2026 | 3.06 | 吨/公顷 | 2026-9 |
| 2024/2025 | 3.337 | 吨/公顷 | 2026-9 |
| 2023/2024 | 3.127 | 吨/公顷 | 2026-9 |
| 2022/2023 | 3.447 | 吨/公顷 | 2026-9 |
| 2021/2022 | 3.186 | 吨/公顷 | 2026-9 |
| 2020/2021 | 3.2 | 吨/公顷 | 2026-9 |
| 2019/2020 | 3.171 | 吨/公顷 | 2026-9 |
| 2018/2019 | 3.043 | 吨/公顷 | 2026-9 |
| 2017/2018 | 3.147 | 吨/公顷 | 2026-9 |
| 2016/2017 | 2.593 | 吨/公顷 | 2026-9 |
| 2015/2016 | 2.601 | 吨/公顷 | 2026-9 |
| 2014/2015 | 2.628 | 吨/公顷 | 2026-9 |
| 2013/2014 | 2.821 | 吨/公顷 | 2026-9 |
| 2012/2013 | 2.667 | 吨/公顷 | 2026-9 |
| 2011/2012 | 2 | 吨/公顷 | 2026-9 |
| 2010/2011 | 2.083 | 吨/公顷 | 2026-9 |
| 2009/2010 | 2.222 | 吨/公顷 | 2026-9 |
| 2008/2009 | 1.75 | 吨/公顷 | 2026-9 |
| 2007/2008 | 1.683 | 吨/公顷 | 2026-9 |
| 2006/2007 | 1.683 | 吨/公顷 | 2026-9 |
| 2005/2006 | 1.93 | 吨/公顷 | 2026-9 |
| 2004/2005 | 2.167 | 吨/公顷 | 2026-9 |
| 2003/2004 | 2.276 | 吨/公顷 | 2026-9 |
| 2002/2003 | 1.677 | 吨/公顷 | 2026-9 |
| 2001/2002 | 1.335 | 吨/公顷 | 2026-9 |
| 2000/2001 | 1.349 | 吨/公顷 | 2026-9 |
| 1999/2000 | 1.12 | 吨/公顷 | 2026-9 |
| 1998/1999 | 1.141 | 吨/公顷 | 2026-9 |
| 1997/1998 | 2.371 | 吨/公顷 | 2026-9 |
| 1996/1997 | 1.411 | 吨/公顷 | 2026-9 |
| 1995/1996 | 0.911 | 吨/公顷 | 2026-9 |
| 1994/1995 | 1.058 | 吨/公顷 | 2026-9 |
| 1993/1994 | 0.795 | 吨/公顷 | 2026-9 |
| 1992/1993 | 0.853 | 吨/公顷 | 2026-9 |
| 1991/1992 | 0.979 | 吨/公顷 | 2026-9 |
| 1990/1991 | 0.944 | 吨/公顷 | 2026-9 |
| 1989/1990 | 0.991 | 吨/公顷 | 2026-9 |
| 1988/1989 | 1.224 | 吨/公顷 | 2026-9 |
| 1987/1988 | 1.215 | 吨/公顷 | 2026-9 |