| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 2026/2027 | 4.615 | 吨/公顷 | 2026-9 |
| 2025/2026 | 4.667 | 吨/公顷 | 2026-9 |
| 2024/2025 | 4.455 | 吨/公顷 | 2026-9 |
| 2023/2024 | 4.364 | 吨/公顷 | 2026-9 |
| 2022/2023 | 3.977 | 吨/公顷 | 2026-9 |
| 2021/2022 | 4.6 | 吨/公顷 | 2026-9 |
| 2020/2021 | 4.841 | 吨/公顷 | 2026-9 |
| 2019/2020 | 3.958 | 吨/公顷 | 2026-9 |
| 2018/2019 | 4.857 | 吨/公顷 | 2026-9 |
| 2017/2018 | 3.591 | 吨/公顷 | 2026-9 |
| 2016/2017 | 4.429 | 吨/公顷 | 2026-9 |
| 2015/2016 | 4.133 | 吨/公顷 | 2026-9 |
| 2014/2015 | 3.933 | 吨/公顷 | 2026-9 |
| 2013/2014 | 3.546 | 吨/公顷 | 2026-9 |
| 2012/2013 | 3.4 | 吨/公顷 | 2026-9 |
| 2011/2012 | 3.313 | 吨/公顷 | 2026-9 |
| 2010/2011 | 2.929 | 吨/公顷 | 2026-9 |
| 2009/2010 | 2.286 | 吨/公顷 | 2026-9 |
| 2008/2009 | 1.094 | 吨/公顷 | 2026-9 |
| 2007/2008 | 2.98 | 吨/公顷 | 2026-9 |
| 2006/2007 | 3.612 | 吨/公顷 | 2026-9 |
| 2005/2006 | 3.523 | 吨/公顷 | 2026-9 |
| 2004/2005 | 3.479 | 吨/公顷 | 2026-9 |
| 2003/2004 | 2.976 | 吨/公顷 | 2026-9 |
| 2002/2003 | 5 | 吨/公顷 | 2026-9 |
| 2001/2002 | 5.351 | 吨/公顷 | 2026-9 |
| 2000/2001 | 5.349 | 吨/公顷 | 2026-9 |
| 1999/2000 | 5.684 | 吨/公顷 | 2026-9 |
| 1998/1999 | 6 | 吨/公顷 | 2026-9 |
| 1997/1998 | 4.808 | 吨/公顷 | 2026-9 |
| 1996/1997 | 5.479 | 吨/公顷 | 2026-9 |
| 1995/1996 | 3.722 | 吨/公顷 | 2026-9 |
| 1994/1995 | 5.581 | 吨/公顷 | 2026-9 |
| 1993/1994 | 5.851 | 吨/公顷 | 2026-9 |
| 1992/1993 | 4.75 | 吨/公顷 | 2026-9 |
| 1991/1992 | 5.63 | 吨/公顷 | 2026-9 |
| 1990/1991 | 5.909 | 吨/公顷 | 2026-9 |
| 1989/1990 | 5.68 | 吨/公顷 | 2026-9 |
| 1988/1989 | 5.468 | 吨/公顷 | 2026-9 |
| 1987/1988 | 5.375 | 吨/公顷 | 2026-9 |
| 1986/1987 | 5.233 | 吨/公顷 | 2026-9 |
| 1985/1986 | 4.881 | 吨/公顷 | 2026-9 |
| 1984/1985 | 4.95 | 吨/公顷 | 2026-9 |
| 1983/1984 | 5.391 | 吨/公顷 | 2026-9 |
| 1982/1983 | 5.757 | 吨/公顷 | 2026-9 |
| 1981/1982 | 4.674 | 吨/公顷 | 2026-9 |
| 1980/1981 | 4.629 | 吨/公顷 | 2026-9 |
| 1979/1980 | 4.351 | 吨/公顷 | 2026-9 |
| 1978/1979 | 4.417 | 吨/公顷 | 2026-9 |
| 1977/1978 | 3.844 | 吨/公顷 | 2026-9 |
| 1976/1977 | 4.265 | 吨/公顷 | 2026-9 |
| 1975/1976 | 3.938 | 吨/公顷 | 2026-9 |
| 1974/1975 | 3.731 | 吨/公顷 | 2026-9 |
| 1973/1974 | 3.909 | 吨/公顷 | 2026-9 |
| 1972/1973 | 3.542 | 吨/公顷 | 2026-9 |
| 1971/1972 | 3.87 | 吨/公顷 | 2026-9 |
| 1970/1971 | 3.6 | 吨/公顷 | 2026-9 |
| 1969/1970 | 3.333 | 吨/公顷 | 2026-9 |
| 1968/1969 | 3.571 | 吨/公顷 | 2026-9 |
| 1967/1968 | 3 | 吨/公顷 | 2026-9 |
| 1966/1967 | 2 | 吨/公顷 | 2026-9 |
| 1965/1966 | 2 | 吨/公顷 | 2026-9 |
| 1964/1965 | 4 | 吨/公顷 | 2026-9 |
| 1963/1964 | 2 | 吨/公顷 | 2026-9 |
| 1962/1963 | 1 | 吨/公顷 | 2026-9 |
| 1961/1962 | 1 | 吨/公顷 | 2026-9 |
| 1960/1961 | 1 | 吨/公顷 | 2026-9 |