| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 2026/2027 | 2.241 | 吨/公顷 | 2026-9 |
| 2025/2026 | 1.946 | 吨/公顷 | 2026-9 |
| 2024/2025 | 2.167 | 吨/公顷 | 2026-9 |
| 2023/2024 | 2.422 | 吨/公顷 | 2026-9 |
| 2022/2023 | 2.14 | 吨/公顷 | 2026-9 |
| 2021/2022 | 2.465 | 吨/公顷 | 2026-9 |
| 2020/2021 | 2.014 | 吨/公顷 | 2026-9 |
| 2019/2020 | 2.578 | 吨/公顷 | 2026-9 |
| 2018/2019 | 2.308 | 吨/公顷 | 2026-9 |
| 2017/2018 | 2.015 | 吨/公顷 | 2026-9 |
| 2016/2017 | 2.235 | 吨/公顷 | 2026-9 |
| 2015/2016 | 2.164 | 吨/公顷 | 2026-9 |
| 2014/2015 | 1.925 | 吨/公顷 | 2026-9 |
| 2013/2014 | 2.189 | 吨/公顷 | 2026-9 |
| 2012/2013 | 1.636 | 吨/公顷 | 2026-9 |
| 2011/2012 | 1.815 | 吨/公顷 | 2026-9 |
| 2010/2011 | 1.5 | 吨/公顷 | 2026-9 |
| 2009/2010 | 1.52 | 吨/公顷 | 2026-9 |
| 2008/2009 | 1.556 | 吨/公顷 | 2026-9 |
| 2007/2008 | 1.235 | 吨/公顷 | 2026-9 |
| 2006/2007 | 1.357 | 吨/公顷 | 2026-9 |
| 2005/2006 | 1.29 | 吨/公顷 | 2026-9 |
| 2004/2005 | 0.89 | 吨/公顷 | 2026-9 |
| 2003/2004 | 1.116 | 吨/公顷 | 2026-9 |
| 2002/2003 | 1.202 | 吨/公顷 | 2026-9 |
| 2001/2002 | 0.94 | 吨/公顷 | 2026-9 |
| 2000/2001 | 1.216 | 吨/公顷 | 2026-9 |
| 1999/2000 | 0.998 | 吨/公顷 | 2026-9 |
| 1998/1999 | 0.932 | 吨/公顷 | 2026-9 |
| 1997/1998 | 1.153 | 吨/公顷 | 2026-9 |
| 1996/1997 | 1.048 | 吨/公顷 | 2026-9 |
| 1995/1996 | 1.424 | 吨/公顷 | 2026-9 |
| 1994/1995 | 0.91 | 吨/公顷 | 2026-9 |
| 1993/1994 | 1.274 | 吨/公顷 | 2026-9 |
| 1992/1993 | 1.305 | 吨/公顷 | 2026-9 |
| 1991/1992 | 1.458 | 吨/公顷 | 2026-9 |
| 1990/1991 | 1.581 | 吨/公顷 | 2026-9 |
| 1989/1990 | 1.793 | 吨/公顷 | 2026-9 |
| 1988/1989 | 1.771 | 吨/公顷 | 2026-9 |
| 1987/1988 | 1.769 | 吨/公顷 | 2026-9 |