| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 2026/2027 | 4.107 | 吨/公顷 | 2026-9 |
| 2025/2026 | 4.107 | 吨/公顷 | 2026-9 |
| 2024/2025 | 4 | 吨/公顷 | 2026-9 |
| 2023/2024 | 4 | 吨/公顷 | 2026-9 |
| 2022/2023 | 3.914 | 吨/公顷 | 2026-9 |
| 2021/2022 | 3.937 | 吨/公顷 | 2026-9 |
| 2020/2021 | 4 | 吨/公顷 | 2026-9 |
| 2019/2020 | 3.935 | 吨/公顷 | 2026-9 |
| 2018/2019 | 3.653 | 吨/公顷 | 2026-9 |
| 2017/2018 | 3.288 | 吨/公顷 | 2026-9 |
| 2016/2017 | 3.302 | 吨/公顷 | 2026-9 |
| 2015/2016 | 3.763 | 吨/公顷 | 2026-9 |
| 2014/2015 | 3.835 | 吨/公顷 | 2026-9 |
| 2013/2014 | 3.481 | 吨/公顷 | 2026-9 |
| 2012/2013 | 3.377 | 吨/公顷 | 2026-9 |
| 2011/2012 | 3.572 | 吨/公顷 | 2026-9 |
| 2010/2011 | 3.53 | 吨/公顷 | 2026-9 |
| 2009/2010 | 3.547 | 吨/公顷 | 2026-9 |
| 2008/2009 | 3.432 | 吨/公顷 | 2026-9 |
| 2007/2008 | 3.51 | 吨/公顷 | 2026-9 |
| 2006/2007 | 3.762 | 吨/公顷 | 2026-9 |
| 2005/2006 | 4.144 | 吨/公顷 | 2026-9 |
| 2004/2005 | 4.105 | 吨/公顷 | 2026-9 |
| 2003/2004 | 3.56 | 吨/公顷 | 2026-9 |
| 2002/2003 | 3.635 | 吨/公顷 | 2026-9 |
| 2001/2002 | 3.757 | 吨/公顷 | 2026-9 |
| 2000/2001 | 2.904 | 吨/公顷 | 2026-9 |
| 1999/2000 | 3.422 | 吨/公顷 | 2026-9 |
| 1998/1999 | 2.938 | 吨/公顷 | 2026-9 |
| 1997/1998 | 3.077 | 吨/公顷 | 2026-9 |
| 1996/1997 | 3.077 | 吨/公顷 | 2026-9 |
| 1995/1996 | 3.187 | 吨/公顷 | 2026-9 |
| 1994/1995 | 3.162 | 吨/公顷 | 2026-9 |
| 1993/1994 | 3.193 | 吨/公顷 | 2026-9 |
| 1992/1993 | 3.057 | 吨/公顷 | 2026-9 |
| 1991/1992 | 2.857 | 吨/公顷 | 2026-9 |
| 1990/1991 | 2.71 | 吨/公顷 | 2026-9 |
| 1989/1990 | 2.626 | 吨/公顷 | 2026-9 |
| 1988/1989 | 2.555 | 吨/公顷 | 2026-9 |
| 1987/1988 | 2.626 | 吨/公顷 | 2026-9 |
| 1986/1987 | 2.511 | 吨/公顷 | 2026-9 |
| 1985/1986 | 2.697 | 吨/公顷 | 2026-9 |
| 1984/1985 | 2.349 | 吨/公顷 | 2026-9 |
| 1983/1984 | 2.418 | 吨/公顷 | 2026-9 |
| 1982/1983 | 2.42 | 吨/公顷 | 2026-9 |
| 1981/1982 | 2.39 | 吨/公顷 | 2026-9 |
| 1980/1981 | 2.384 | 吨/公顷 | 2026-9 |
| 1979/1980 | 2.455 | 吨/公顷 | 2026-9 |
| 1978/1979 | 2.369 | 吨/公顷 | 2026-9 |
| 1977/1978 | 1.925 | 吨/公顷 | 2026-9 |
| 1976/1977 | 2.085 | 吨/公顷 | 2026-9 |
| 1975/1976 | 1.956 | 吨/公顷 | 2026-9 |
| 1974/1975 | 1.722 | 吨/公顷 | 2026-9 |
| 1973/1974 | 1.222 | 吨/公顷 | 2026-9 |
| 1972/1973 | 1.56 | 吨/公顷 | 2026-9 |
| 1971/1972 | 1.717 | 吨/公顷 | 2026-9 |
| 1970/1971 | 1.506 | 吨/公顷 | 2026-9 |
| 1969/1970 | 1.371 | 吨/公顷 | 2026-9 |
| 1968/1969 | 1.442 | 吨/公顷 | 2026-9 |
| 1967/1968 | 1.728 | 吨/公顷 | 2026-9 |
| 1966/1967 | 1.59 | 吨/公顷 | 2026-9 |
| 1965/1966 | 1.499 | 吨/公顷 | 2026-9 |
| 1964/1965 | 1.494 | 吨/公顷 | 2026-9 |
| 1963/1964 | 1.147 | 吨/公顷 | 2026-9 |
| 1962/1963 | 1.017 | 吨/公顷 | 2026-9 |
| 1961/1962 | 1.132 | 吨/公顷 | 2026-9 |
| 1960/1961 | 0.779 | 吨/公顷 | 2026-9 |