| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 2026/2027 | 3 | 吨/公顷 | 2026-9 |
| 2025/2026 | 3 | 吨/公顷 | 2026-9 |
| 2024/2025 | 3 | 吨/公顷 | 2026-9 |
| 2023/2024 | 3 | 吨/公顷 | 2026-9 |
| 2022/2023 | 3.117 | 吨/公顷 | 2026-9 |
| 2021/2022 | 3.107 | 吨/公顷 | 2026-9 |
| 2020/2021 | 3.098 | 吨/公顷 | 2026-9 |
| 2019/2020 | 3.057 | 吨/公顷 | 2026-9 |
| 2018/2019 | 3.01 | 吨/公顷 | 2026-9 |
| 2017/2018 | 2.959 | 吨/公顷 | 2026-9 |
| 2016/2017 | 2.719 | 吨/公顷 | 2026-9 |
| 2015/2016 | 2.518 | 吨/公顷 | 2026-9 |
| 2014/2015 | 2.49 | 吨/公顷 | 2026-9 |
| 2013/2014 | 2.463 | 吨/公顷 | 2026-9 |
| 2012/2013 | 2.339 | 吨/公顷 | 2026-9 |
| 2011/2012 | 2.262 | 吨/公顷 | 2026-9 |
| 2010/2011 | 1.989 | 吨/公顷 | 2026-9 |
| 2009/2010 | 1.578 | 吨/公顷 | 2026-9 |
| 2008/2009 | 1.495 | 吨/公顷 | 2026-9 |
| 2007/2008 | 1.822 | 吨/公顷 | 2026-9 |
| 2006/2007 | 1.91 | 吨/公顷 | 2026-9 |
| 2005/2006 | 2.101 | 吨/公顷 | 2026-9 |
| 2004/2005 | 1.979 | 吨/公顷 | 2026-9 |
| 2003/2004 | 1.896 | 吨/公顷 | 2026-9 |
| 2002/2003 | 1.909 | 吨/公顷 | 2026-9 |
| 2001/2002 | 1.713 | 吨/公顷 | 2026-9 |
| 2000/2001 | 1.7 | 吨/公顷 | 2026-9 |
| 1999/2000 | 1.744 | 吨/公顷 | 2026-9 |
| 1998/1999 | 2.206 | 吨/公顷 | 2026-9 |
| 1997/1998 | 1.604 | 吨/公顷 | 2026-9 |
| 1996/1997 | 2.359 | 吨/公顷 | 2026-9 |
| 1995/1996 | 1.983 | 吨/公顷 | 2026-9 |
| 1994/1995 | 2.213 | 吨/公顷 | 2026-9 |
| 1993/1994 | 2.183 | 吨/公顷 | 2026-9 |
| 1992/1993 | 2.078 | 吨/公顷 | 2026-9 |
| 1991/1992 | 1.616 | 吨/公顷 | 2026-9 |
| 1990/1991 | 2.008 | 吨/公顷 | 2026-9 |
| 1989/1990 | 1.566 | 吨/公顷 | 2026-9 |
| 1988/1989 | 1.796 | 吨/公顷 | 2026-9 |
| 1987/1988 | 1.688 | 吨/公顷 | 2026-9 |
| 1986/1987 | 1.524 | 吨/公顷 | 2026-9 |
| 1985/1986 | 1.802 | 吨/公顷 | 2026-9 |
| 1984/1985 | 1.85 | 吨/公顷 | 2026-9 |
| 1983/1984 | 1.845 | 吨/公顷 | 2026-9 |
| 1982/1983 | 1.629 | 吨/公顷 | 2026-9 |
| 1981/1982 | 1.479 | 吨/公顷 | 2026-9 |
| 1980/1981 | 1.406 | 吨/公顷 | 2026-9 |
| 1979/1980 | 1.468 | 吨/公顷 | 2026-9 |
| 1978/1979 | 1.537 | 吨/公顷 | 2026-9 |
| 1977/1978 | 1.374 | 吨/公顷 | 2026-9 |
| 1976/1977 | 1.233 | 吨/公顷 | 2026-9 |
| 1975/1976 | 1.464 | 吨/公顷 | 2026-9 |
| 1974/1975 | 1.434 | 吨/公顷 | 2026-9 |
| 1973/1974 | 1.31 | 吨/公顷 | 2026-9 |
| 1972/1973 | 1.171 | 吨/公顷 | 2026-9 |
| 1971/1972 | 1.337 | 吨/公顷 | 2026-9 |
| 1970/1971 | 1.274 | 吨/公顷 | 2026-9 |
| 1969/1970 | 1.081 | 吨/公顷 | 2026-9 |
| 1968/1969 | 1.071 | 吨/公顷 | 2026-9 |
| 1967/1968 | 1.169 | 吨/公顷 | 2026-9 |
| 1966/1967 | 1.055 | 吨/公顷 | 2026-9 |
| 1965/1966 | 0.945 | 吨/公顷 | 2026-9 |
| 1964/1965 | 0.902 | 吨/公顷 | 2026-9 |
| 1963/1964 | 0.742 | 吨/公顷 | 2026-9 |
| 1962/1963 | 0.71 | 吨/公顷 | 2026-9 |
| 1961/1962 | 0.837 | 吨/公顷 | 2026-9 |
| 1960/1961 | 0.664 | 吨/公顷 | 2026-9 |