| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 2026/2027 | 3.506 | 吨/公顷 | 2026-9 |
| 2025/2026 | 3.434 | 吨/公顷 | 2026-9 |
| 2024/2025 | 2.935 | 吨/公顷 | 2026-9 |
| 2023/2024 | 3.174 | 吨/公顷 | 2026-9 |
| 2022/2023 | 3.172 | 吨/公顷 | 2026-9 |
| 2021/2022 | 2.72 | 吨/公顷 | 2026-9 |
| 2020/2021 | 2.976 | 吨/公顷 | 2026-9 |
| 2019/2020 | 2.695 | 吨/公顷 | 2026-9 |
| 2018/2019 | 2.721 | 吨/公顷 | 2026-9 |
| 2017/2018 | 3.112 | 吨/公顷 | 2026-9 |
| 2016/2017 | 2.686 | 吨/公顷 | 2026-9 |
| 2015/2016 | 2.387 | 吨/公顷 | 2026-9 |
| 2014/2015 | 2.5 | 吨/公顷 | 2026-9 |
| 2013/2014 | 2.226 | 吨/公顷 | 2026-9 |
| 2012/2013 | 1.771 | 吨/公顷 | 2026-9 |
| 2011/2012 | 2.267 | 吨/公顷 | 2026-9 |
| 2010/2011 | 1.908 | 吨/公顷 | 2026-9 |
| 2009/2010 | 2.314 | 吨/公顷 | 2026-9 |
| 2008/2009 | 2.443 | 吨/公顷 | 2026-9 |
| 2007/2008 | 2.103 | 吨/公顷 | 2026-9 |
| 2006/2007 | 1.957 | 吨/公顷 | 2026-9 |
| 2005/2006 | 1.937 | 吨/公顷 | 2026-9 |
| 2004/2005 | 1.982 | 吨/公顷 | 2026-9 |
| 2003/2004 | 1.702 | 吨/公顷 | 2026-9 |
| 2002/2003 | 2.072 | 吨/公顷 | 2026-9 |
| 2001/2002 | 2.062 | 吨/公顷 | 2026-9 |
| 2000/2001 | 1.618 | 吨/公顷 | 2026-9 |
| 1999/2000 | 1.564 | 吨/公顷 | 2026-9 |
| 1998/1999 | 1.354 | 吨/公顷 | 2026-9 |
| 1997/1998 | 1.842 | 吨/公顷 | 2026-9 |
| 1996/1997 | 1.548 | 吨/公顷 | 2026-9 |
| 1995/1996 | 1.396 | 吨/公顷 | 2026-9 |
| 1994/1995 | 1.529 | 吨/公顷 | 2026-9 |
| 1993/1994 | 1.822 | 吨/公顷 | 2026-9 |
| 1992/1993 | 1.961 | 吨/公顷 | 2026-9 |
| 1991/1992 | 1.727 | 吨/公顷 | 2026-9 |
| 1990/1991 | 2.107 | 吨/公顷 | 2026-9 |
| 1989/1990 | 1.805 | 吨/公顷 | 2026-9 |
| 1988/1989 | 1.622 | 吨/公顷 | 2026-9 |
| 1987/1988 | 1.538 | 吨/公顷 | 2026-9 |