| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 2026/2027 | 3.304 | 吨/公顷 | 2026-9 |
| 2025/2026 | 3.333 | 吨/公顷 | 2026-9 |
| 2024/2025 | 3.304 | 吨/公顷 | 2026-9 |
| 2023/2024 | 3.378 | 吨/公顷 | 2026-9 |
| 2022/2023 | 3.174 | 吨/公顷 | 2026-9 |
| 2021/2022 | 3.296 | 吨/公顷 | 2026-9 |
| 2020/2021 | 3.175 | 吨/公顷 | 2026-9 |
| 2019/2020 | 3.242 | 吨/公顷 | 2026-9 |
| 2018/2019 | 3.009 | 吨/公顷 | 2026-9 |
| 2017/2018 | 3.052 | 吨/公顷 | 2026-9 |
| 2016/2017 | 3.134 | 吨/公顷 | 2026-9 |
| 2015/2016 | 3.126 | 吨/公顷 | 2026-9 |
| 2014/2015 | 2.375 | 吨/公顷 | 2026-9 |
| 2013/2014 | 2.744 | 吨/公顷 | 2026-9 |
| 2012/2013 | 2.685 | 吨/公顷 | 2026-9 |
| 2011/2012 | 2.509 | 吨/公顷 | 2026-9 |
| 2010/2011 | 1.989 | 吨/公顷 | 2026-9 |
| 2009/2010 | 2.65 | 吨/公顷 | 2026-9 |
| 2008/2009 | 2.778 | 吨/公顷 | 2026-9 |
| 2007/2008 | 2.722 | 吨/公顷 | 2026-9 |
| 2006/2007 | 2.658 | 吨/公顷 | 2026-9 |
| 2005/2006 | 2.645 | 吨/公顷 | 2026-9 |
| 2004/2005 | 2.642 | 吨/公顷 | 2026-9 |
| 2003/2004 | 2.613 | 吨/公顷 | 2026-9 |
| 2002/2003 | 2.661 | 吨/公顷 | 2026-9 |
| 2001/2002 | 2.673 | 吨/公顷 | 2026-9 |
| 2000/2001 | 2.374 | 吨/公顷 | 2026-9 |
| 1999/2000 | 2.047 | 吨/公顷 | 2026-9 |
| 1998/1999 | 1.59 | 吨/公顷 | 2026-9 |
| 1997/1998 | 1.738 | 吨/公顷 | 2026-9 |
| 1996/1997 | 1.672 | 吨/公顷 | 2026-9 |
| 1995/1996 | 1.427 | 吨/公顷 | 2026-9 |
| 1994/1995 | 1.631 | 吨/公顷 | 2026-9 |
| 1993/1994 | 1.615 | 吨/公顷 | 2026-9 |
| 1992/1993 | 2.083 | 吨/公顷 | 2026-9 |
| 1991/1992 | 2.19 | 吨/公顷 | 2026-9 |
| 1990/1991 | 2.385 | 吨/公顷 | 2026-9 |
| 1989/1990 | 2.258 | 吨/公顷 | 2026-9 |
| 1988/1989 | 2.556 | 吨/公顷 | 2026-9 |
| 1987/1988 | 2.422 | 吨/公顷 | 2026-9 |