| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 2026/2027 | 2 | 吨/公顷 | 2026-9 |
| 2025/2026 | 2.041 | 吨/公顷 | 2026-9 |
| 2024/2025 | 1.627 | 吨/公顷 | 2026-9 |
| 2023/2024 | 2.729 | 吨/公顷 | 2026-9 |
| 2022/2023 | 1.805 | 吨/公顷 | 2026-9 |
| 2021/2022 | 1.181 | 吨/公顷 | 2026-9 |
| 2020/2021 | 2.956 | 吨/公顷 | 2026-9 |
| 2019/2020 | 2.27 | 吨/公顷 | 2026-9 |
| 2018/2019 | 2.403 | 吨/公顷 | 2026-9 |
| 2017/2018 | 2.637 | 吨/公顷 | 2026-9 |
| 2016/2017 | 1.968 | 吨/公顷 | 2026-9 |
| 2015/2016 | 2.864 | 吨/公顷 | 2026-9 |
| 2014/2015 | 2.979 | 吨/公顷 | 2026-9 |
| 2013/2014 | 2.377 | 吨/公顷 | 2026-9 |
| 2012/2013 | 2.234 | 吨/公顷 | 2026-9 |
| 2011/2012 | 2.409 | 吨/公顷 | 2026-9 |
| 2010/2011 | 2.92 | 吨/公顷 | 2026-9 |
| 2009/2010 | 3.736 | 吨/公顷 | 2026-9 |
| 2008/2009 | 3.466 | 吨/公顷 | 2026-9 |
| 2007/2008 | 3.188 | 吨/公顷 | 2026-9 |
| 2006/2007 | 3.266 | 吨/公顷 | 2026-9 |
| 2005/2006 | 3.204 | 吨/公顷 | 2026-9 |
| 2004/2005 | 3.028 | 吨/公顷 | 2026-9 |
| 2003/2004 | 2.187 | 吨/公顷 | 2026-9 |
| 2002/2003 | 2.224 | 吨/公顷 | 2026-9 |
| 2001/2002 | 2.73 | 吨/公顷 | 2026-9 |
| 2000/2001 | 2.378 | 吨/公顷 | 2026-9 |
| 1999/2000 | 2.182 | 吨/公顷 | 2026-9 |
| 1998/1999 | 2.113 | 吨/公顷 | 2026-9 |
| 1997/1998 | 2.676 | 吨/公顷 | 2026-9 |
| 1996/1997 | 2.843 | 吨/公顷 | 2026-9 |
| 1995/1996 | 2.854 | 吨/公顷 | 2026-9 |
| 1994/1995 | 3.036 | 吨/公顷 | 2026-9 |
| 1993/1994 | 2.04 | 吨/公顷 | 2026-9 |
| 1992/1993 | 2.79 | 吨/公顷 | 2026-9 |
| 1991/1992 | 3.039 | 吨/公顷 | 2026-9 |
| 1990/1991 | 2.759 | 吨/公顷 | 2026-9 |
| 1989/1990 | 1.577 | 吨/公顷 | 2026-9 |
| 1988/1989 | 2.389 | 吨/公顷 | 2026-9 |
| 1987/1988 | 3.167 | 吨/公顷 | 2026-9 |
| 1986/1987 | 2.714 | 吨/公顷 | 2026-9 |
| 1985/1986 | 3.615 | 吨/公顷 | 2026-9 |
| 1984/1985 | 3.333 | 吨/公顷 | 2026-9 |
| 1983/1984 | 2 | 吨/公顷 | 2026-9 |
| 1982/1983 | 2.5 | 吨/公顷 | 2026-9 |
| 1981/1982 | 3.25 | 吨/公顷 | 2026-9 |
| 1980/1981 | 3.5 | 吨/公顷 | 2026-9 |
| 1979/1980 | 4.5 | 吨/公顷 | 2026-9 |
| 1978/1979 | 4.333 | 吨/公顷 | 2026-9 |
| 1977/1978 | 2.5 | 吨/公顷 | 2026-9 |
| 1976/1977 | 4 | 吨/公顷 | 2026-9 |