| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 2026/2027 | 2.364 | 吨/公顷 | 2026-9 |
| 2025/2026 | 2.364 | 吨/公顷 | 2026-9 |
| 2024/2025 | 2.369 | 吨/公顷 | 2026-9 |
| 2023/2024 | 2.25 | 吨/公顷 | 2026-9 |
| 2022/2023 | 2.191 | 吨/公顷 | 2026-9 |
| 2021/2022 | 2.039 | 吨/公顷 | 2026-9 |
| 2020/2021 | 2.132 | 吨/公顷 | 2026-9 |
| 2019/2020 | 2.146 | 吨/公顷 | 2026-9 |
| 2018/2019 | 2.637 | 吨/公顷 | 2026-9 |
| 2017/2018 | 2.11 | 吨/公顷 | 2026-9 |
| 2016/2017 | 1.301 | 吨/公顷 | 2026-9 |
| 2015/2016 | 1.225 | 吨/公顷 | 2026-9 |
| 2014/2015 | 1.197 | 吨/公顷 | 2026-9 |
| 2013/2014 | 1.162 | 吨/公顷 | 2026-9 |
| 2012/2013 | 1.43 | 吨/公顷 | 2026-9 |
| 2011/2012 | 1.357 | 吨/公顷 | 2026-9 |
| 2010/2011 | 1.086 | 吨/公顷 | 2026-9 |
| 2009/2010 | 1.688 | 吨/公顷 | 2026-9 |
| 2008/2009 | 0.986 | 吨/公顷 | 2026-9 |
| 2007/2008 | 1.029 | 吨/公顷 | 2026-9 |
| 2006/2007 | 1.26 | 吨/公顷 | 2026-9 |
| 2005/2006 | 1.289 | 吨/公顷 | 2026-9 |
| 2004/2005 | 1.415 | 吨/公顷 | 2026-9 |
| 2003/2004 | 1.25 | 吨/公顷 | 2026-9 |
| 2002/2003 | 2.125 | 吨/公顷 | 2026-9 |
| 2001/2002 | 2.125 | 吨/公顷 | 2026-9 |
| 2000/2001 | 2 | 吨/公顷 | 2026-9 |
| 1999/2000 | 3.35 | 吨/公顷 | 2026-9 |
| 1998/1999 | 3.533 | 吨/公顷 | 2026-9 |
| 1997/1998 | 3.364 | 吨/公顷 | 2026-9 |
| 1996/1997 | 2.7 | 吨/公顷 | 2026-9 |
| 1995/1996 | 2.7 | 吨/公顷 | 2026-9 |
| 1994/1995 | 2.943 | 吨/公顷 | 2026-9 |
| 1993/1994 | 2.771 | 吨/公顷 | 2026-9 |
| 1992/1993 | 2.771 | 吨/公顷 | 2026-9 |
| 1991/1992 | 3.143 | 吨/公顷 | 2026-9 |
| 1990/1991 | 3.143 | 吨/公顷 | 2026-9 |
| 1989/1990 | 3.25 | 吨/公顷 | 2026-9 |
| 1988/1989 | 3.286 | 吨/公顷 | 2026-9 |
| 1987/1988 | 3.429 | 吨/公顷 | 2026-9 |
| 1986/1987 | 3.229 | 吨/公顷 | 2026-9 |
| 1985/1986 | 3.075 | 吨/公顷 | 2026-9 |
| 1984/1985 | 3.143 | 吨/公顷 | 2026-9 |
| 1983/1984 | 3.233 | 吨/公顷 | 2026-9 |
| 1982/1983 | 2.72 | 吨/公顷 | 2026-9 |
| 1981/1982 | 2.1 | 吨/公顷 | 2026-9 |
| 1980/1981 | 1.88 | 吨/公顷 | 2026-9 |
| 1979/1980 | 1.086 | 吨/公顷 | 2026-9 |
| 1978/1979 | 1.8 | 吨/公顷 | 2026-9 |
| 1977/1978 | 1.68 | 吨/公顷 | 2026-9 |
| 1976/1977 | 1.371 | 吨/公顷 | 2026-9 |
| 1975/1976 | 0.967 | 吨/公顷 | 2026-9 |
| 1974/1975 | 1.2 | 吨/公顷 | 2026-9 |
| 1973/1974 | 0.8 | 吨/公顷 | 2026-9 |
| 1972/1973 | 0.611 | 吨/公顷 | 2026-9 |
| 1971/1972 | 0.75 | 吨/公顷 | 2026-9 |
| 1970/1971 | 0.706 | 吨/公顷 | 2026-9 |
| 1969/1970 | 1.2 | 吨/公顷 | 2026-9 |
| 1968/1969 | 1.214 | 吨/公顷 | 2026-9 |
| 1967/1968 | 1.533 | 吨/公顷 | 2026-9 |
| 1966/1967 | 1.214 | 吨/公顷 | 2026-9 |
| 1965/1966 | 1.273 | 吨/公顷 | 2026-9 |
| 1964/1965 | 1.077 | 吨/公顷 | 2026-9 |
| 1963/1964 | 0.786 | 吨/公顷 | 2026-9 |
| 1962/1963 | 0.9 | 吨/公顷 | 2026-9 |
| 1961/1962 | 0.714 | 吨/公顷 | 2026-9 |
| 1960/1961 | 0 | 吨/公顷 | 2026-9 |