| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 2026/2027 | 1.95 | 吨/公顷 | 2026-9 |
| 2025/2026 | 1.95 | 吨/公顷 | 2026-9 |
| 2024/2025 | 2.25 | 吨/公顷 | 2026-9 |
| 2023/2024 | 2.075 | 吨/公顷 | 2026-9 |
| 2022/2023 | 1.875 | 吨/公顷 | 2026-9 |
| 2021/2022 | 1.812 | 吨/公顷 | 2026-9 |
| 2020/2021 | 2.14 | 吨/公顷 | 2026-9 |
| 2019/2020 | 1.88 | 吨/公顷 | 2026-9 |
| 2018/2019 | 1.113 | 吨/公顷 | 2026-9 |
| 2017/2018 | 0.978 | 吨/公顷 | 2026-9 |
| 2016/2017 | 1.135 | 吨/公顷 | 2026-9 |
| 2015/2016 | 1.087 | 吨/公顷 | 2026-9 |
| 2014/2015 | 1.087 | 吨/公顷 | 2026-9 |
| 2013/2014 | 1.087 | 吨/公顷 | 2026-9 |
| 2012/2013 | 1.345 | 吨/公顷 | 2026-9 |
| 2011/2012 | 0.893 | 吨/公顷 | 2026-9 |
| 2010/2011 | 0.667 | 吨/公顷 | 2026-9 |
| 2009/2010 | 1.048 | 吨/公顷 | 2026-9 |
| 2008/2009 | 0.833 | 吨/公顷 | 2026-9 |
| 2007/2008 | 0.974 | 吨/公顷 | 2026-9 |
| 2006/2007 | 0.961 | 吨/公顷 | 2026-9 |
| 2005/2006 | 0.902 | 吨/公顷 | 2026-9 |
| 2004/2005 | 0.949 | 吨/公顷 | 2026-9 |
| 2003/2004 | 1.045 | 吨/公顷 | 2026-9 |
| 2002/2003 | 0.918 | 吨/公顷 | 2026-9 |
| 2001/2002 | 0.602 | 吨/公顷 | 2026-9 |
| 2000/2001 | 0.673 | 吨/公顷 | 2026-9 |
| 1999/2000 | 0.596 | 吨/公顷 | 2026-9 |
| 1998/1999 | 0.519 | 吨/公顷 | 2026-9 |
| 1997/1998 | 0.576 | 吨/公顷 | 2026-9 |
| 1996/1997 | 0.624 | 吨/公顷 | 2026-9 |
| 1995/1996 | 0.848 | 吨/公顷 | 2026-9 |
| 1994/1995 | 0.798 | 吨/公顷 | 2026-9 |
| 1993/1994 | 0.732 | 吨/公顷 | 2026-9 |
| 1992/1993 | 0.833 | 吨/公顷 | 2026-9 |
| 1991/1992 | 1.31 | 吨/公顷 | 2026-9 |
| 1990/1991 | 1.254 | 吨/公顷 | 2026-9 |
| 1989/1990 | 1.318 | 吨/公顷 | 2026-9 |
| 1988/1989 | 1.238 | 吨/公顷 | 2026-9 |
| 1987/1988 | 1.333 | 吨/公顷 | 2026-9 |