| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 2026/2027 | 0.659 | 吨/公顷 | 2026-9 |
| 2025/2026 | 0.583 | 吨/公顷 | 2026-9 |
| 2024/2025 | 0.619 | 吨/公顷 | 2026-9 |
| 2023/2024 | 0.443 | 吨/公顷 | 2026-9 |
| 2022/2023 | 0.965 | 吨/公顷 | 2026-9 |
| 2021/2022 | 0.916 | 吨/公顷 | 2026-9 |
| 2020/2021 | 0.616 | 吨/公顷 | 2026-9 |
| 2019/2020 | 0.667 | 吨/公顷 | 2026-9 |
| 2018/2019 | 0.489 | 吨/公顷 | 2026-9 |
| 2017/2018 | 0.425 | 吨/公顷 | 2026-9 |
| 2016/2017 | 0.404 | 吨/公顷 | 2026-9 |
| 2015/2016 | 0.545 | 吨/公顷 | 2026-9 |
| 2014/2015 | 0.411 | 吨/公顷 | 2026-9 |
| 2013/2014 | 0.282 | 吨/公顷 | 2026-9 |
| 2012/2013 | 0.559 | 吨/公顷 | 2026-9 |
| 2011/2012 | 1.134 | 吨/公顷 | 2026-9 |
| 2010/2011 | 1.137 | 吨/公顷 | 2026-9 |
| 2009/2010 | 0.978 | 吨/公顷 | 2026-9 |
| 2008/2009 | 0.93 | 吨/公顷 | 2026-9 |
| 2007/2008 | 0.907 | 吨/公顷 | 2026-9 |
| 2006/2007 | 1 | 吨/公顷 | 2026-9 |
| 2005/2006 | 0.967 | 吨/公顷 | 2026-9 |
| 2004/2005 | 1 | 吨/公顷 | 2026-9 |
| 2003/2004 | 1 | 吨/公顷 | 2026-9 |
| 2002/2003 | 1.111 | 吨/公顷 | 2026-9 |
| 2001/2002 | 0.96 | 吨/公顷 | 2026-9 |
| 2000/2001 | 0.981 | 吨/公顷 | 2026-9 |
| 1999/2000 | 1.112 | 吨/公顷 | 2026-9 |
| 1998/1999 | 1.05 | 吨/公顷 | 2026-9 |
| 1997/1998 | 1.103 | 吨/公顷 | 2026-9 |
| 1996/1997 | 0.938 | 吨/公顷 | 2026-9 |
| 1995/1996 | 0.877 | 吨/公顷 | 2026-9 |
| 1994/1995 | 0.81 | 吨/公顷 | 2026-9 |
| 1993/1994 | 0.581 | 吨/公顷 | 2026-9 |
| 1992/1993 | 0.275 | 吨/公顷 | 2026-9 |
| 1991/1992 | 1.017 | 吨/公顷 | 2026-9 |
| 1990/1991 | 0.914 | 吨/公顷 | 2026-9 |
| 1989/1990 | 1.1 | 吨/公顷 | 2026-9 |
| 1988/1989 | 1.1 | 吨/公顷 | 2026-9 |
| 1987/1988 | 1 | 吨/公顷 | 2026-9 |
| 1986/1987 | 0.871 | 吨/公顷 | 2026-9 |
| 1985/1986 | 0.786 | 吨/公顷 | 2026-9 |
| 1984/1985 | 1.222 | 吨/公顷 | 2026-9 |
| 1983/1984 | 1 | 吨/公顷 | 2026-9 |
| 1982/1983 | 0.871 | 吨/公顷 | 2026-9 |
| 1981/1982 | 0.871 | 吨/公顷 | 2026-9 |
| 1980/1981 | 0.933 | 吨/公顷 | 2026-9 |
| 1979/1980 | 0.933 | 吨/公顷 | 2026-9 |
| 1978/1979 | 0.739 | 吨/公顷 | 2026-9 |
| 1977/1978 | 1.077 | 吨/公顷 | 2026-9 |
| 1976/1977 | 1.046 | 吨/公顷 | 2026-9 |
| 1975/1976 | 1.215 | 吨/公顷 | 2026-9 |
| 1974/1975 | 1.36 | 吨/公顷 | 2026-9 |
| 1973/1974 | 1.6 | 吨/公顷 | 2026-9 |
| 1972/1973 | 1.6 | 吨/公顷 | 2026-9 |
| 1971/1972 | 1.6 | 吨/公顷 | 2026-9 |
| 1970/1971 | 1.573 | 吨/公顷 | 2026-9 |
| 1969/1970 | 1.378 | 吨/公顷 | 2026-9 |
| 1968/1969 | 1.125 | 吨/公顷 | 2026-9 |
| 1967/1968 | 1.65 | 吨/公顷 | 2026-9 |
| 1966/1967 | 1.5 | 吨/公顷 | 2026-9 |
| 1965/1966 | 1.45 | 吨/公顷 | 2026-9 |
| 1964/1965 | 1.45 | 吨/公顷 | 2026-9 |
| 1963/1964 | 1.5 | 吨/公顷 | 2026-9 |
| 1962/1963 | 1.444 | 吨/公顷 | 2026-9 |
| 1961/1962 | 1.5 | 吨/公顷 | 2026-9 |
| 1960/1961 | 1.45 | 吨/公顷 | 2026-9 |