| 年度 | 数值 | 单位 | 发布时间 |
|---|
| 2026/2027 | 5.938 | 吨/公顷 | 2026-9 |
| 2025/2026 | 5.333 | 吨/公顷 | 2026-9 |
| 2024/2025 | 6.236 | 吨/公顷 | 2026-9 |
| 2023/2024 | 5.905 | 吨/公顷 | 2026-9 |
| 2022/2023 | 5.803 | 吨/公顷 | 2026-9 |
| 2021/2022 | 5.574 | 吨/公顷 | 2026-9 |
| 2020/2021 | 5.509 | 吨/公顷 | 2026-9 |
| 2019/2020 | 5.683 | 吨/公顷 | 2026-9 |
| 2018/2019 | 5.643 | 吨/公顷 | 2026-9 |
| 2017/2018 | 5.892 | 吨/公顷 | 2026-9 |
| 2016/2017 | 6.933 | 吨/公顷 | 2026-9 |
| 2015/2016 | 6.667 | 吨/公顷 | 2026-9 |
| 2014/2015 | 6.467 | 吨/公顷 | 2026-9 |
| 2013/2014 | 5.833 | 吨/公顷 | 2026-9 |
| 2012/2013 | 5.133 | 吨/公顷 | 2026-9 |
| 2011/2012 | 3.2 | 吨/公顷 | 2026-9 |
| 2010/2011 | 3.2 | 吨/公顷 | 2026-9 |
| 2009/2010 | 3.2 | 吨/公顷 | 2026-9 |
| 2008/2009 | 3.2 | 吨/公顷 | 2026-9 |
| 2007/2008 | 3.2 | 吨/公顷 | 2026-9 |
| 2006/2007 | 3.2 | 吨/公顷 | 2026-9 |
| 2005/2006 | 3.2 | 吨/公顷 | 2026-9 |
| 2004/2005 | 3.2 | 吨/公顷 | 2026-9 |
| 2003/2004 | 3.8 | 吨/公顷 | 2026-9 |
| 2002/2003 | 4.231 | 吨/公顷 | 2026-9 |
| 2001/2002 | 2.615 | 吨/公顷 | 2026-9 |
| 2000/2001 | 3.455 | 吨/公顷 | 2026-9 |
| 1999/2000 | 3 | 吨/公顷 | 2026-9 |
| 1998/1999 | 3.273 | 吨/公顷 | 2026-9 |
| 1997/1998 | 0.625 | 吨/公顷 | 2026-9 |
| 1996/1997 | 3.75 | 吨/公顷 | 2026-9 |
| 1995/1996 | 1.9 | 吨/公顷 | 2026-9 |
| 1994/1995 | 1.8 | 吨/公顷 | 2026-9 |
| 1993/1994 | 3 | 吨/公顷 | 2026-9 |
| 1992/1993 | 3 | 吨/公顷 | 2026-9 |
| 1991/1992 | 3.75 | 吨/公顷 | 2026-9 |
| 1990/1991 | 5.313 | 吨/公顷 | 2026-9 |
| 1989/1990 | 5.737 | 吨/公顷 | 2026-9 |
| 1988/1989 | 4.632 | 吨/公顷 | 2026-9 |
| 1987/1988 | 4.474 | 吨/公顷 | 2026-9 |