| 年度 | 数值 | 单位 | 发布时间 |
|---|
| 2026/2027 | 6 | 吨/公顷 | 2026-9 |
| 2025/2026 | 5.688 | 吨/公顷 | 2026-9 |
| 2024/2025 | 6.204 | 吨/公顷 | 2026-9 |
| 2023/2024 | 6.258 | 吨/公顷 | 2026-9 |
| 2022/2023 | 5.84 | 吨/公顷 | 2026-9 |
| 2021/2022 | 5.979 | 吨/公顷 | 2026-9 |
| 2020/2021 | 5.877 | 吨/公顷 | 2026-9 |
| 2019/2020 | 5.744 | 吨/公顷 | 2026-9 |
| 2018/2019 | 5.747 | 吨/公顷 | 2026-9 |
| 2017/2018 | 5.73 | 吨/公顷 | 2026-9 |
| 2016/2017 | 5.644 | 吨/公顷 | 2026-9 |
| 2015/2016 | 5.319 | 吨/公顷 | 2026-9 |
| 2014/2015 | 5.27 | 吨/公顷 | 2026-9 |
| 2013/2014 | 5.278 | 吨/公顷 | 2026-9 |
| 2012/2013 | 5 | 吨/公顷 | 2026-9 |
| 2011/2012 | 4.969 | 吨/公顷 | 2026-9 |
| 2010/2011 | 4.813 | 吨/公顷 | 2026-9 |
| 2009/2010 | 4.758 | 吨/公顷 | 2026-9 |
| 2008/2009 | 4.421 | 吨/公顷 | 2026-9 |
| 2007/2008 | 4.576 | 吨/公顷 | 2026-9 |
| 2006/2007 | 4.652 | 吨/公顷 | 2026-9 |
| 2005/2006 | 4.154 | 吨/公顷 | 2026-9 |
| 2004/2005 | 4.447 | 吨/公顷 | 2026-9 |
| 2003/2004 | 4.337 | 吨/公顷 | 2026-9 |
| 2002/2003 | 4.143 | 吨/公顷 | 2026-9 |
| 2001/2002 | 3.721 | 吨/公顷 | 2026-9 |
| 2000/2001 | 3.333 | 吨/公顷 | 2026-9 |
| 1999/2000 | 3.03 | 吨/公顷 | 2026-9 |
| 1998/1999 | 2.615 | 吨/公顷 | 2026-9 |
| 1997/1998 | 2.775 | 吨/公顷 | 2026-9 |
| 1996/1997 | 1.452 | 吨/公顷 | 2026-9 |
| 1995/1996 | 1.558 | 吨/公顷 | 2026-9 |
| 1994/1995 | 1.688 | 吨/公顷 | 2026-9 |
| 1993/1994 | 3.034 | 吨/公顷 | 2026-9 |
| 1992/1993 | 2.921 | 吨/公顷 | 2026-9 |
| 1991/1992 | 2.727 | 吨/公顷 | 2026-9 |
| 1990/1991 | 3.426 | 吨/公顷 | 2026-9 |
| 1989/1990 | 3.575 | 吨/公顷 | 2026-9 |
| 1988/1989 | 4.095 | 吨/公顷 | 2026-9 |
| 1987/1988 | 4.008 | 吨/公顷 | 2026-9 |