| 年度 | 数值 | 单位 | 发布时间 |
|---|
| 2026/2027 | 3.906 | 吨/公顷 | 2026-9 |
| 2025/2026 | 4.091 | 吨/公顷 | 2026-9 |
| 2024/2025 | 4.118 | 吨/公顷 | 2026-9 |
| 2023/2024 | 4.429 | 吨/公顷 | 2026-9 |
| 2022/2023 | 4.154 | 吨/公顷 | 2026-9 |
| 2021/2022 | 4.328 | 吨/公顷 | 2026-9 |
| 2020/2021 | 4.308 | 吨/公顷 | 2026-9 |
| 2019/2020 | 4.174 | 吨/公顷 | 2026-9 |
| 2018/2019 | 4.188 | 吨/公顷 | 2026-9 |
| 2017/2018 | 4.167 | 吨/公顷 | 2026-9 |
| 2016/2017 | 4.231 | 吨/公顷 | 2026-9 |
| 2015/2016 | 3.902 | 吨/公顷 | 2026-9 |
| 2014/2015 | 4.043 | 吨/公顷 | 2026-9 |
| 2013/2014 | 4 | 吨/公顷 | 2026-9 |
| 2012/2013 | 3.902 | 吨/公顷 | 2026-9 |
| 2011/2012 | 3.421 | 吨/公顷 | 2026-9 |
| 2010/2011 | 3.333 | 吨/公顷 | 2026-9 |
| 2009/2010 | 3.333 | 吨/公顷 | 2026-9 |
| 2008/2009 | 3.338 | 吨/公顷 | 2026-9 |
| 2007/2008 | 3.26 | 吨/公顷 | 2026-9 |
| 2006/2007 | 3.107 | 吨/公顷 | 2026-9 |
| 2005/2006 | 2.875 | 吨/公顷 | 2026-9 |
| 2004/2005 | 2.685 | 吨/公顷 | 2026-9 |
| 2003/2004 | 2.479 | 吨/公顷 | 2026-9 |
| 2002/2003 | 2.129 | 吨/公顷 | 2026-9 |
| 2001/2002 | 2.096 | 吨/公顷 | 2026-9 |
| 2000/2001 | 1.71 | 吨/公顷 | 2026-9 |
| 1999/2000 | 1.695 | 吨/公顷 | 2026-9 |
| 1998/1999 | 1.563 | 吨/公顷 | 2026-9 |
| 1997/1998 | 1.563 | 吨/公顷 | 2026-9 |
| 1996/1997 | 1.563 | 吨/公顷 | 2026-9 |
| 1995/1996 | 1.688 | 吨/公顷 | 2026-9 |
| 1994/1995 | 1.61 | 吨/公顷 | 2026-9 |
| 1993/1994 | 1.557 | 吨/公顷 | 2026-9 |
| 1992/1993 | 1.518 | 吨/公顷 | 2026-9 |
| 1991/1992 | 1.54 | 吨/公顷 | 2026-9 |
| 1990/1991 | 1.512 | 吨/公顷 | 2026-9 |
| 1989/1990 | 1.577 | 吨/公顷 | 2026-9 |
| 1988/1989 | 1.554 | 吨/公顷 | 2026-9 |
| 1987/1988 | 1.4 | 吨/公顷 | 2026-9 |
| 1986/1987 | 1.592 | 吨/公顷 | 2026-9 |
| 1985/1986 | 1.503 | 吨/公顷 | 2026-9 |
| 1984/1985 | 1.323 | 吨/公顷 | 2026-9 |
| 1983/1984 | 1.486 | 吨/公顷 | 2026-9 |
| 1982/1983 | 1.296 | 吨/公顷 | 2026-9 |
| 1981/1982 | 1.16 | 吨/公顷 | 2026-9 |
| 1980/1981 | 1.27 | 吨/公顷 | 2026-9 |
| 1979/1980 | 0.85 | 吨/公顷 | 2026-9 |
| 1978/1979 | 0.85 | 吨/公顷 | 2026-9 |
| 1977/1978 | 1.011 | 吨/公顷 | 2026-9 |
| 1976/1977 | 0.868 | 吨/公顷 | 2026-9 |
| 1975/1976 | 0.859 | 吨/公顷 | 2026-9 |
| 1974/1975 | 0.806 | 吨/公顷 | 2026-9 |
| 1973/1974 | 0.78 | 吨/公顷 | 2026-9 |
| 1972/1973 | 0.551 | 吨/公顷 | 2026-9 |
| 1971/1972 | 0.64 | 吨/公顷 | 2026-9 |
| 1970/1971 | 0.728 | 吨/公顷 | 2026-9 |
| 1969/1970 | 0.479 | 吨/公顷 | 2026-9 |
| 1968/1969 | 0.369 | 吨/公顷 | 2026-9 |
| 1967/1968 | 0.376 | 吨/公顷 | 2026-9 |
| 1966/1967 | 0.346 | 吨/公顷 | 2026-9 |
| 1965/1966 | 0.346 | 吨/公顷 | 2026-9 |
| 1964/1965 | 0.427 | 吨/公顷 | 2026-9 |
| 1963/1964 | 0.514 | 吨/公顷 | 2026-9 |
| 1962/1963 | 0.465 | 吨/公顷 | 2026-9 |
| 1961/1962 | 0.679 | 吨/公顷 | 2026-9 |
| 1960/1961 | 0.609 | 吨/公顷 | 2026-9 |