| 年度 | 数值 | 单位 | 发布时间 |
|---|
| 2026/2027 | 1.152 | 吨/公顷 | 2026-9 |
| 2025/2026 | 1.364 | 吨/公顷 | 2026-9 |
| 2024/2025 | 1.271 | 吨/公顷 | 2026-9 |
| 2023/2024 | 1.103 | 吨/公顷 | 2026-9 |
| 2022/2023 | 1.12 | 吨/公顷 | 2026-9 |
| 2021/2022 | 1.123 | 吨/公顷 | 2026-9 |
| 2020/2021 | 1.201 | 吨/公顷 | 2026-9 |
| 2019/2020 | 1.265 | 吨/公顷 | 2026-9 |
| 2018/2019 | 1.281 | 吨/公顷 | 2026-9 |
| 2017/2018 | 1.182 | 吨/公顷 | 2026-9 |
| 2016/2017 | 1.272 | 吨/公顷 | 2026-9 |
| 2015/2016 | 1.148 | 吨/公顷 | 2026-9 |
| 2014/2015 | 1.164 | 吨/公顷 | 2026-9 |
| 2013/2014 | 1.226 | 吨/公顷 | 2026-9 |
| 2012/2013 | 1.369 | 吨/公顷 | 2026-9 |
| 2011/2012 | 1.225 | 吨/公顷 | 2026-9 |
| 2010/2011 | 0.952 | 吨/公顷 | 2026-9 |
| 2009/2010 | 0.977 | 吨/公顷 | 2026-9 |
| 2008/2009 | 0.962 | 吨/公顷 | 2026-9 |
| 2007/2008 | 1 | 吨/公顷 | 2026-9 |
| 2006/2007 | 1.07 | 吨/公顷 | 2026-9 |
| 2005/2006 | 1.092 | 吨/公顷 | 2026-9 |
| 2004/2005 | 0.843 | 吨/公顷 | 2026-9 |
| 2003/2004 | 0.908 | 吨/公顷 | 2026-9 |
| 2002/2003 | 0.72 | 吨/公顷 | 2026-9 |
| 2001/2002 | 0.525 | 吨/公顷 | 2026-9 |
| 2000/2001 | 0.753 | 吨/公顷 | 2026-9 |
| 1999/2000 | 0.769 | 吨/公顷 | 2026-9 |
| 1998/1999 | 1.308 | 吨/公顷 | 2026-9 |
| 1997/1998 | 1 | 吨/公顷 | 2026-9 |
| 1996/1997 | 0.882 | 吨/公顷 | 2026-9 |
| 1995/1996 | 0.857 | 吨/公顷 | 2026-9 |
| 1994/1995 | 0.847 | 吨/公顷 | 2026-9 |
| 1993/1994 | 1.449 | 吨/公顷 | 2026-9 |
| 1992/1993 | 1.286 | 吨/公顷 | 2026-9 |
| 1991/1992 | 0.886 | 吨/公顷 | 2026-9 |
| 1990/1991 | 0.645 | 吨/公顷 | 2026-9 |
| 1989/1990 | 0.643 | 吨/公顷 | 2026-9 |
| 1988/1989 | 0.873 | 吨/公顷 | 2026-9 |
| 1987/1988 | 0.677 | 吨/公顷 | 2026-9 |
| 1986/1987 | 0.726 | 吨/公顷 | 2026-9 |
| 1985/1986 | 0.722 | 吨/公顷 | 2026-9 |
| 1984/1985 | 0.5 | 吨/公顷 | 2026-9 |
| 1983/1984 | 2.6 | 吨/公顷 | 2026-9 |
| 1982/1983 | 2.5 | 吨/公顷 | 2026-9 |