| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 2026/2027 | 1.453 | 吨/公顷 | 2026-9 |
| 2025/2026 | 1.575 | 吨/公顷 | 2026-9 |
| 2024/2025 | 1.682 | 吨/公顷 | 2026-9 |
| 2023/2024 | 1.078 | 吨/公顷 | 2026-9 |
| 2022/2023 | 1.511 | 吨/公顷 | 2026-9 |
| 2021/2022 | 1.097 | 吨/公顷 | 2026-9 |
| 2020/2021 | 1.341 | 吨/公顷 | 2026-9 |
| 2019/2020 | 1.287 | 吨/公顷 | 2026-9 |
| 2018/2019 | 1.578 | 吨/公顷 | 2026-9 |
| 2017/2018 | 1.597 | 吨/公顷 | 2026-9 |
| 2016/2017 | 1.707 | 吨/公顷 | 2026-9 |
| 2015/2016 | 1.313 | 吨/公顷 | 2026-9 |
| 2014/2015 | 1.264 | 吨/公顷 | 2026-9 |
| 2013/2014 | 1.382 | 吨/公顷 | 2026-9 |
| 2012/2013 | 0.938 | 吨/公顷 | 2026-9 |
| 2011/2012 | 1.712 | 吨/公顷 | 2026-9 |
| 2010/2011 | 0.985 | 吨/公顷 | 2026-9 |
| 2009/2010 | 1.474 | 吨/公顷 | 2026-9 |
| 2008/2009 | 1.047 | 吨/公顷 | 2026-9 |
| 2007/2008 | 1.328 | 吨/公顷 | 2026-9 |
| 2006/2007 | 1.169 | 吨/公顷 | 2026-9 |
| 2005/2006 | 1.053 | 吨/公顷 | 2026-9 |
| 2004/2005 | 0.845 | 吨/公顷 | 2026-9 |
| 2003/2004 | 1.142 | 吨/公顷 | 2026-9 |
| 2002/2003 | 1.272 | 吨/公顷 | 2026-9 |
| 2001/2002 | 1.311 | 吨/公顷 | 2026-9 |
| 2000/2001 | 1.031 | 吨/公顷 | 2026-9 |
| 1999/2000 | 1.321 | 吨/公顷 | 2026-9 |
| 1998/1999 | 0.611 | 吨/公顷 | 2026-9 |
| 1997/1998 | 0.8 | 吨/公顷 | 2026-9 |
| 1996/1997 | 0.75 | 吨/公顷 | 2026-9 |
| 1995/1996 | 0.454 | 吨/公顷 | 2026-9 |
| 1994/1995 | 0.909 | 吨/公顷 | 2026-9 |
| 1993/1994 | 1.021 | 吨/公顷 | 2026-9 |
| 1992/1993 | 1.489 | 吨/公顷 | 2026-9 |
| 1991/1992 | 0.466 | 吨/公顷 | 2026-9 |
| 1990/1991 | 1.276 | 吨/公顷 | 2026-9 |
| 1989/1990 | 0.784 | 吨/公顷 | 2026-9 |
| 1988/1989 | 0.828 | 吨/公顷 | 2026-9 |
| 1987/1988 | 1.008 | 吨/公顷 | 2026-9 |