| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 2026/2027 | 4 | 吨/公顷 | 2026-9 |
| 2025/2026 | 3.933 | 吨/公顷 | 2026-9 |
| 2024/2025 | 3.85 | 吨/公顷 | 2026-9 |
| 2023/2024 | 3.361 | 吨/公顷 | 2026-9 |
| 2022/2023 | 4.158 | 吨/公顷 | 2026-9 |
| 2021/2022 | 4.297 | 吨/公顷 | 2026-9 |
| 2020/2021 | 4.135 | 吨/公顷 | 2026-9 |
| 2019/2020 | 3.933 | 吨/公顷 | 2026-9 |
| 2018/2019 | 3.744 | 吨/公顷 | 2026-9 |
| 2017/2018 | 3.621 | 吨/公顷 | 2026-9 |
| 2016/2017 | 3.833 | 吨/公顷 | 2026-9 |
| 2015/2016 | 3.482 | 吨/公顷 | 2026-9 |
| 2014/2015 | 3.269 | 吨/公顷 | 2026-9 |
| 2013/2014 | 3.097 | 吨/公顷 | 2026-9 |
| 2012/2013 | 2.884 | 吨/公顷 | 2026-9 |
| 2011/2012 | 2.939 | 吨/公顷 | 2026-9 |
| 2010/2011 | 2.619 | 吨/公顷 | 2026-9 |
| 2009/2010 | 3 | 吨/公顷 | 2026-9 |
| 2008/2009 | 3.109 | 吨/公顷 | 2026-9 |
| 2007/2008 | 3.042 | 吨/公顷 | 2026-9 |
| 2006/2007 | 2.89 | 吨/公顷 | 2026-9 |
| 2005/2006 | 2.919 | 吨/公顷 | 2026-9 |
| 2004/2005 | 2.461 | 吨/公顷 | 2026-9 |
| 2003/2004 | 3.276 | 吨/公顷 | 2026-9 |
| 2002/2003 | 3.087 | 吨/公顷 | 2026-9 |
| 2001/2002 | 3.159 | 吨/公顷 | 2026-9 |
| 2000/2001 | 2.988 | 吨/公顷 | 2026-9 |
| 1999/2000 | 2.5 | 吨/公顷 | 2026-9 |
| 1998/1999 | 2.468 | 吨/公顷 | 2026-9 |
| 1997/1998 | 0.957 | 吨/公顷 | 2026-9 |
| 1996/1997 | 2.179 | 吨/公顷 | 2026-9 |
| 1995/1996 | 1.982 | 吨/公顷 | 2026-9 |
| 1994/1995 | 2.123 | 吨/公顷 | 2026-9 |
| 1993/1994 | 2.11 | 吨/公顷 | 2026-9 |
| 1992/1993 | 2.475 | 吨/公顷 | 2026-9 |
| 1991/1992 | 2.118 | 吨/公顷 | 2026-9 |
| 1990/1991 | 1.973 | 吨/公顷 | 2026-9 |
| 1989/1990 | 1.944 | 吨/公顷 | 2026-9 |
| 1988/1989 | 1.904 | 吨/公顷 | 2026-9 |
| 1987/1988 | 2 | 吨/公顷 | 2026-9 |
| 1986/1987 | 2.058 | 吨/公顷 | 2026-9 |
| 1985/1986 | 2.055 | 吨/公顷 | 2026-9 |
| 1984/1985 | 1.768 | 吨/公顷 | 2026-9 |
| 1983/1984 | 1.887 | 吨/公顷 | 2026-9 |
| 1982/1983 | 1.853 | 吨/公顷 | 2026-9 |
| 1981/1982 | 1.885 | 吨/公顷 | 2026-9 |
| 1980/1981 | 1.663 | 吨/公顷 | 2026-9 |
| 1979/1980 | 1.717 | 吨/公顷 | 2026-9 |
| 1978/1979 | 1.691 | 吨/公顷 | 2026-9 |
| 1977/1978 | 1.771 | 吨/公顷 | 2026-9 |
| 1976/1977 | 1.495 | 吨/公顷 | 2026-9 |
| 1975/1976 | 1.609 | 吨/公顷 | 2026-9 |
| 1974/1975 | 1.589 | 吨/公顷 | 2026-9 |
| 1973/1974 | 1.543 | 吨/公顷 | 2026-9 |
| 1972/1973 | 1.191 | 吨/公顷 | 2026-9 |
| 1971/1972 | 1.417 | 吨/公顷 | 2026-9 |
| 1970/1971 | 1.409 | 吨/公顷 | 2026-9 |
| 1969/1970 | 1.31 | 吨/公顷 | 2026-9 |
| 1968/1969 | 1.264 | 吨/公顷 | 2026-9 |
| 1967/1968 | 1.162 | 吨/公顷 | 2026-9 |
| 1966/1967 | 1.061 | 吨/公顷 | 2026-9 |
| 1965/1966 | 1.135 | 吨/公顷 | 2026-9 |
| 1964/1965 | 1.058 | 吨/公顷 | 2026-9 |
| 1963/1964 | 1.078 | 吨/公顷 | 2026-9 |
| 1962/1963 | 1.1 | 吨/公顷 | 2026-9 |
| 1961/1962 | 1.09 | 吨/公顷 | 2026-9 |
| 1960/1961 | 1.079 | 吨/公顷 | 2026-9 |