| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 2026/2027 | 4.727 | 吨/公顷 | 2026-9 |
| 2025/2026 | 4.266 | 吨/公顷 | 2026-9 |
| 2024/2025 | 4.5 | 吨/公顷 | 2026-9 |
| 2023/2024 | 4.591 | 吨/公顷 | 2026-9 |
| 2022/2023 | 3.839 | 吨/公顷 | 2026-9 |
| 2021/2022 | 4.455 | 吨/公顷 | 2026-9 |
| 2020/2021 | 3.713 | 吨/公顷 | 2026-9 |
| 2019/2020 | 4.155 | 吨/公顷 | 2026-9 |
| 2018/2019 | 3.73 | 吨/公顷 | 2026-9 |
| 2017/2018 | 4.062 | 吨/公顷 | 2026-9 |
| 2016/2017 | 4.146 | 吨/公顷 | 2026-9 |
| 2015/2016 | 3.833 | 吨/公顷 | 2026-9 |
| 2014/2015 | 3.929 | 吨/公顷 | 2026-9 |
| 2013/2014 | 3.393 | 吨/公顷 | 2026-9 |
| 2012/2013 | 2.8 | 吨/公顷 | 2026-9 |
| 2011/2012 | 3.354 | 吨/公顷 | 2026-9 |
| 2010/2011 | 2.681 | 吨/公顷 | 2026-9 |
| 2009/2010 | 3.09 | 吨/公顷 | 2026-9 |
| 2008/2009 | 3.67 | 吨/公顷 | 2026-9 |
| 2007/2008 | 2.342 | 吨/公顷 | 2026-9 |
| 2006/2007 | 2.531 | 吨/公顷 | 2026-9 |
| 2005/2006 | 2.846 | 吨/公顷 | 2026-9 |
| 2004/2005 | 3.166 | 吨/公顷 | 2026-9 |
| 2003/2004 | 1.465 | 吨/公顷 | 2026-9 |
| 2002/2003 | 3.045 | 吨/公顷 | 2026-9 |
| 2001/2002 | 3.102 | 吨/公顷 | 2026-9 |
| 2000/2001 | 1.976 | 吨/公顷 | 2026-9 |
| 1999/2000 | 2.291 | 吨/公顷 | 2026-9 |
| 1998/1999 | 2.648 | 吨/公顷 | 2026-9 |
| 1997/1998 | 2.828 | 吨/公顷 | 2026-9 |
| 1996/1997 | 2.3 | 吨/公顷 | 2026-9 |
| 1995/1996 | 2.97 | 吨/公顷 | 2026-9 |
| 1994/1995 | 3.075 | 吨/公顷 | 2026-9 |
| 1993/1994 | 3.798 | 吨/公顷 | 2026-9 |
| 1992/1993 | 3.082 | 吨/公顷 | 2026-9 |
| 1991/1992 | 3.012 | 吨/公顷 | 2026-9 |
| 1990/1991 | 4.009 | 吨/公顷 | 2026-9 |
| 1989/1990 | 3.933 | 吨/公顷 | 2026-9 |
| 1988/1989 | 3.36 | 吨/公顷 | 2026-9 |
| 1987/1988 | 3.668 | 吨/公顷 | 2026-9 |