| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 2026/2027 | 1.422 | 吨/公顷 | 2026-9 |
| 2025/2026 | 1.516 | 吨/公顷 | 2026-9 |
| 2024/2025 | 1.505 | 吨/公顷 | 2026-9 |
| 2023/2024 | 1.416 | 吨/公顷 | 2026-9 |
| 2022/2023 | 1.474 | 吨/公顷 | 2026-9 |
| 2021/2022 | 1.396 | 吨/公顷 | 2026-9 |
| 2020/2021 | 1.427 | 吨/公顷 | 2026-9 |
| 2019/2020 | 1.387 | 吨/公顷 | 2026-9 |
| 2018/2019 | 1.211 | 吨/公顷 | 2026-9 |
| 2017/2018 | 1.262 | 吨/公顷 | 2026-9 |
| 2016/2017 | 1.271 | 吨/公顷 | 2026-9 |
| 2015/2016 | 1.153 | 吨/公顷 | 2026-9 |
| 2014/2015 | 1.276 | 吨/公顷 | 2026-9 |
| 2013/2014 | 1.204 | 吨/公顷 | 2026-9 |
| 2012/2013 | 1.171 | 吨/公顷 | 2026-9 |
| 2011/2012 | 1.177 | 吨/公顷 | 2026-9 |
| 2010/2011 | 1.112 | 吨/公顷 | 2026-9 |
| 2009/2010 | 0.798 | 吨/公顷 | 2026-9 |
| 2008/2009 | 1.03 | 吨/公顷 | 2026-9 |
| 2007/2008 | 1.056 | 吨/公顷 | 2026-9 |
| 2006/2007 | 0.885 | 吨/公顷 | 2026-9 |
| 2005/2006 | 0.863 | 吨/公顷 | 2026-9 |
| 2004/2005 | 0.912 | 吨/公顷 | 2026-9 |
| 2003/2004 | 1.087 | 吨/公顷 | 2026-9 |
| 2002/2003 | 0.627 | 吨/公顷 | 2026-9 |
| 2001/2002 | 0.9 | 吨/公顷 | 2026-9 |
| 2000/2001 | 0.775 | 吨/公顷 | 2026-9 |
| 1999/2000 | 0.728 | 吨/公顷 | 2026-9 |
| 1998/1999 | 0.816 | 吨/公顷 | 2026-9 |
| 1997/1998 | 0.793 | 吨/公顷 | 2026-9 |
| 1996/1997 | 0.818 | 吨/公顷 | 2026-9 |
| 1995/1996 | 0.683 | 吨/公顷 | 2026-9 |
| 1994/1995 | 0.721 | 吨/公顷 | 2026-9 |
| 1993/1994 | 0.634 | 吨/公顷 | 2026-9 |
| 1992/1993 | 0.847 | 吨/公顷 | 2026-9 |
| 1991/1992 | 0.56 | 吨/公顷 | 2026-9 |
| 1990/1991 | 0.691 | 吨/公顷 | 2026-9 |
| 1989/1990 | 0.663 | 吨/公顷 | 2026-9 |
| 1988/1989 | 0.664 | 吨/公顷 | 2026-9 |
| 1987/1988 | 0.496 | 吨/公顷 | 2026-9 |
| 1986/1987 | 0.496 | 吨/公顷 | 2026-9 |
| 1985/1986 | 0.457 | 吨/公顷 | 2026-9 |
| 1984/1985 | 0.602 | 吨/公顷 | 2026-9 |
| 1983/1984 | 0.679 | 吨/公顷 | 2026-9 |
| 1982/1983 | 0.509 | 吨/公顷 | 2026-9 |
| 1981/1982 | 0.565 | 吨/公顷 | 2026-9 |
| 1980/1981 | 0.53 | 吨/公顷 | 2026-9 |
| 1979/1980 | 0.471 | 吨/公顷 | 2026-9 |
| 1978/1979 | 0.576 | 吨/公顷 | 2026-9 |
| 1977/1978 | 0.529 | 吨/公顷 | 2026-9 |
| 1976/1977 | 0.538 | 吨/公顷 | 2026-9 |
| 1975/1976 | 0.554 | 吨/公顷 | 2026-9 |
| 1974/1975 | 0.386 | 吨/公顷 | 2026-9 |
| 1973/1974 | 0.554 | 吨/公顷 | 2026-9 |
| 1972/1973 | 0.402 | 吨/公顷 | 2026-9 |
| 1971/1972 | 0.493 | 吨/公顷 | 2026-9 |
| 1970/1971 | 0.604 | 吨/公顷 | 2026-9 |
| 1969/1970 | 0.459 | 吨/公顷 | 2026-9 |
| 1968/1969 | 0.381 | 吨/公顷 | 2026-9 |
| 1967/1968 | 0.45 | 吨/公顷 | 2026-9 |
| 1966/1967 | 0.396 | 吨/公顷 | 2026-9 |
| 1965/1966 | 0.345 | 吨/公顷 | 2026-9 |
| 1964/1965 | 0.448 | 吨/公顷 | 2026-9 |
| 1963/1964 | 0.436 | 吨/公顷 | 2026-9 |
| 1962/1963 | 0.43 | 吨/公顷 | 2026-9 |
| 1961/1962 | 0.415 | 吨/公顷 | 2026-9 |
| 1960/1961 | 0.374 | 吨/公顷 | 2026-9 |