| 年度 | 数值 | 单位 | 发布日期 |
| 2026/2027 | 2.924 | 吨/公顷 | 2026-9 |
| 2025/2026 | 3.056 | 吨/公顷 | 2026-9 |
| 2024/2025 | 2.928 | 吨/公顷 | 2026-9 |
| 2023/2024 | 2.945 | 吨/公顷 | 2026-9 |
| 2022/2023 | 1.736 | 吨/公顷 | 2026-9 |
| 2021/2022 | 2.761 | 吨/公顷 | 2026-9 |
| 2020/2021 | 2.805 | 吨/公顷 | 2026-9 |
| 2019/2020 | 2.922 | 吨/公顷 | 2026-9 |
| 2018/2019 | 3.331 | 吨/公顷 | 2026-9 |
| 2017/2018 | 2.319 | 吨/公顷 | 2026-9 |
| 2016/2017 | 3.173 | 吨/公顷 | 2026-9 |
| 2015/2016 | 3.039 | 吨/公顷 | 2026-9 |
| 2014/2015 | 3.176 | 吨/公顷 | 2026-9 |
| 2013/2014 | 2.774 | 吨/公顷 | 2026-9 |
| 2012/2013 | 2.496 | 吨/公顷 | 2026-9 |
| 2011/2012 | 2.281 | 吨/公顷 | 2026-9 |
| 2010/2011 | 2.678 | 吨/公顷 | 2026-9 |
| 2009/2010 | 2.93 | 吨/公顷 | 2026-9 |
| 2008/2009 | 2 | 吨/公顷 | 2026-9 |
| 2007/2008 | 2.822 | 吨/公顷 | 2026-9 |
| 2006/2007 | 2.994 | 吨/公顷 | 2026-9 |
| 2005/2006 | 2.665 | 吨/公顷 | 2026-9 |
| 2004/2005 | 2.708 | 吨/公顷 | 2026-9 |
| 2003/2004 | 2.357 | 吨/公顷 | 2026-9 |
| 2002/2003 | 2.818 | 吨/公顷 | 2026-9 |
| 2001/2002 | 2.632 | 吨/公顷 | 2026-9 |
| 2000/2001 | 2.673 | 吨/公顷 | 2026-9 |
| 1999/2000 | 2.47 | 吨/公顷 | 2026-9 |
| 1998/1999 | 2.45 | 吨/公顷 | 2026-9 |
| 1997/1998 | 2.804 | 吨/公顷 | 2026-9 |
| 1996/1997 | 1.807 | 吨/公顷 | 2026-9 |
| 1995/1996 | 2.087 | 吨/公顷 | 2026-9 |
| 1994/1995 | 2.193 | 吨/公顷 | 2026-9 |
| 1993/1994 | 2.296 | 吨/公顷 | 2026-9 |
| 1992/1993 | 2.316 | 吨/公顷 | 2026-9 |
| 1991/1992 | 2.365 | 吨/公顷 | 2026-9 |
| 1990/1991 | 2.421 | 吨/公顷 | 2026-9 |
| 1989/1990 | 2.172 | 吨/公顷 | 2026-9 |
| 1988/1989 | 1.625 | 吨/公顷 | 2026-9 |
| 1987/1988 | 2.347 | 吨/公顷 | 2026-9 |
| 1986/1987 | 1.994 | 吨/公顷 | 2026-9 |
| 1985/1986 | 2.201 | 吨/公顷 | 2026-9 |
| 1984/1985 | 2.064 | 吨/公顷 | 2026-9 |
| 1983/1984 | 2.406 | 吨/公顷 | 2026-9 |
| 1982/1983 | 1.841 | 吨/公顷 | 2026-9 |
| 1981/1982 | 2.09 | 吨/公顷 | 2026-9 |
| 1980/1981 | 2.012 | 吨/公顷 | 2026-9 |
| 1979/1980 | 1.773 | 吨/公顷 | 2026-9 |
| 1978/1979 | 2.313 | 吨/公顷 | 2026-9 |
| 1977/1978 | 2.16 | 吨/公顷 | 2026-9 |