| 年度 | 数值 | 单位 | 发布日期 |
| 2026/2027 | 4.286 | 吨/公顷 | 2026-9 |
| 2025/2026 | 4.286 | 吨/公顷 | 2026-9 |
| 2024/2025 | 4.286 | 吨/公顷 | 2026-9 |
| 2023/2024 | 4.286 | 吨/公顷 | 2026-9 |
| 2022/2023 | 4.619 | 吨/公顷 | 2026-9 |
| 2021/2022 | 3.899 | 吨/公顷 | 2026-9 |
| 2020/2021 | 4.716 | 吨/公顷 | 2026-9 |
| 2019/2020 | 4.182 | 吨/公顷 | 2026-9 |
| 2018/2019 | 2.243 | 吨/公顷 | 2026-9 |
| 2017/2018 | 4.162 | 吨/公顷 | 2026-9 |
| 2016/2017 | 4.724 | 吨/公顷 | 2026-9 |
| 2015/2016 | 4.54 | 吨/公顷 | 2026-9 |
| 2014/2015 | 3.931 | 吨/公顷 | 2026-9 |
| 2013/2014 | 3.246 | 吨/公顷 | 2026-9 |
| 2012/2013 | 3.362 | 吨/公顷 | 2026-9 |
| 2011/2012 | 3.208 | 吨/公顷 | 2026-9 |
| 2010/2011 | 3.934 | 吨/公顷 | 2026-9 |
| 2009/2010 | 3.42 | 吨/公顷 | 2026-9 |
| 2008/2009 | 4.205 | 吨/公顷 | 2026-9 |
| 2007/2008 | 3.833 | 吨/公顷 | 2026-9 |
| 2006/2007 | 3.397 | 吨/公顷 | 2026-9 |
| 2005/2006 | 3.822 | 吨/公顷 | 2026-9 |
| 2004/2005 | 4.318 | 吨/公顷 | 2026-9 |
| 2003/2004 | 4.024 | 吨/公顷 | 2026-9 |
| 2002/2003 | 3.577 | 吨/公顷 | 2026-9 |
| 2001/2002 | 3.976 | 吨/公顷 | 2026-9 |
| 2000/2001 | 4.223 | 吨/公顷 | 2026-9 |
| 1999/2000 | 3.956 | 吨/公顷 | 2026-9 |
| 1998/1999 | 4.448 | 吨/公顷 | 2026-9 |
| 1997/1998 | 4.045 | 吨/公顷 | 2026-9 |
| 1996/1997 | 4.231 | 吨/公顷 | 2026-9 |
| 1995/1996 | 4.116 | 吨/公顷 | 2026-9 |
| 1994/1995 | 3.01 | 吨/公顷 | 2026-9 |
| 1993/1994 | 3.585 | 吨/公顷 | 2026-9 |
| 1992/1993 | 2.391 | 吨/公顷 | 2026-9 |
| 1991/1992 | 4.203 | 吨/公顷 | 2026-9 |
| 1990/1991 | 4.385 | 吨/公顷 | 2026-9 |
| 1989/1990 | 3.134 | 吨/公顷 | 2026-9 |
| 1988/1989 | 3.016 | 吨/公顷 | 2026-9 |
| 1987/1988 | 3.871 | 吨/公顷 | 2026-9 |
| 1986/1987 | 3.15 | 吨/公顷 | 2026-9 |
| 1985/1986 | 3.837 | 吨/公顷 | 2026-9 |
| 1984/1985 | 4.686 | 吨/公顷 | 2026-9 |
| 1983/1984 | 3.378 | 吨/公顷 | 2026-9 |
| 1982/1983 | 3.702 | 吨/公顷 | 2026-9 |
| 1981/1982 | 3.675 | 吨/公顷 | 2026-9 |
| 1980/1981 | 3.708 | 吨/公顷 | 2026-9 |
| 1979/1980 | 3.782 | 吨/公顷 | 2026-9 |
| 1978/1979 | 3.784 | 吨/公顷 | 2026-9 |
| 1977/1978 | 3.636 | 吨/公顷 | 2026-9 |
| 1976/1977 | 2.716 | 吨/公顷 | 2026-9 |
| 1975/1976 | 2.515 | 吨/公顷 | 2026-9 |
| 1974/1975 | 3.922 | 吨/公顷 | 2026-9 |
| 1973/1974 | 3.49 | 吨/公顷 | 2026-9 |
| 1972/1973 | 3.151 | 吨/公顷 | 2026-9 |
| 1971/1972 | 3.321 | 吨/公顷 | 2026-9 |
| 1970/1971 | 3.353 | 吨/公顷 | 2026-9 |
| 1969/1970 | 2.593 | 吨/公顷 | 2026-9 |
| 1968/1969 | 3.52 | 吨/公顷 | 2026-9 |
| 1967/1968 | 2.733 | 吨/公顷 | 2026-9 |
| 1966/1967 | 2.22 | 吨/公顷 | 2026-9 |
| 1965/1966 | 2.457 | 吨/公顷 | 2026-9 |
| 1964/1965 | 2.423 | 吨/公顷 | 2026-9 |
| 1963/1964 | 2.568 | 吨/公顷 | 2026-9 |
| 1962/1963 | 2.019 | 吨/公顷 | 2026-9 |
| 1961/1962 | 2.807 | 吨/公顷 | 2026-9 |
| 1960/1961 | 2.662 | 吨/公顷 | 2026-9 |