| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 2026/2027 | 6 | 吨/公顷 | 2026-9 |
| 2025/2026 | 6 | 吨/公顷 | 2026-9 |
| 2024/2025 | 5.75 | 吨/公顷 | 2026-9 |
| 2023/2024 | 7.5 | 吨/公顷 | 2026-9 |
| 2022/2023 | 6.6 | 吨/公顷 | 2026-9 |
| 2021/2022 | 6.25 | 吨/公顷 | 2026-9 |
| 2020/2021 | 5.75 | 吨/公顷 | 2026-9 |
| 2019/2020 | 5.4 | 吨/公顷 | 2026-9 |
| 2018/2019 | 6 | 吨/公顷 | 2026-9 |
| 2017/2018 | 5.833 | 吨/公顷 | 2026-9 |
| 2016/2017 | 5.375 | 吨/公顷 | 2026-9 |
| 2015/2016 | 4.833 | 吨/公顷 | 2026-9 |
| 2014/2015 | 5.833 | 吨/公顷 | 2026-9 |
| 2013/2014 | 5.6 | 吨/公顷 | 2026-9 |
| 2012/2013 | 4.5 | 吨/公顷 | 2026-9 |
| 2011/2012 | 4.667 | 吨/公顷 | 2026-9 |
| 2010/2011 | 5.333 | 吨/公顷 | 2026-9 |
| 2009/2010 | 4.857 | 吨/公顷 | 2026-9 |
| 2008/2009 | 5.2 | 吨/公顷 | 2026-9 |
| 2007/2008 | 4.667 | 吨/公顷 | 2026-9 |
| 2006/2007 | 4.667 | 吨/公顷 | 2026-9 |
| 2005/2006 | 3.625 | 吨/公顷 | 2026-9 |
| 2004/2005 | 3.875 | 吨/公顷 | 2026-9 |
| 2003/2004 | 5 | 吨/公顷 | 2026-9 |
| 2002/2003 | 5 | 吨/公顷 | 2026-9 |
| 2001/2002 | 4.444 | 吨/公顷 | 2026-9 |
| 2000/2001 | 5 | 吨/公顷 | 2026-9 |
| 1999/2000 | 4 | 吨/公顷 | 2026-9 |
| 1998/1999 | 4 | 吨/公顷 | 2026-9 |
| 1997/1998 | 4 | 吨/公顷 | 2026-9 |
| 1996/1997 | 4.1 | 吨/公顷 | 2026-9 |
| 1995/1996 | 3.9 | 吨/公顷 | 2026-9 |
| 1994/1995 | 4.462 | 吨/公顷 | 2026-9 |
| 1993/1994 | 4.071 | 吨/公顷 | 2026-9 |
| 1992/1993 | 4.143 | 吨/公顷 | 2026-9 |
| 1991/1992 | 3.8 | 吨/公顷 | 2026-9 |
| 1990/1991 | 3.762 | 吨/公顷 | 2026-9 |
| 1989/1990 | 3.737 | 吨/公顷 | 2026-9 |
| 1988/1989 | 3.737 | 吨/公顷 | 2026-9 |
| 1987/1988 | 3.611 | 吨/公顷 | 2026-9 |
| 1986/1987 | 3.688 | 吨/公顷 | 2026-9 |
| 1985/1986 | 4.4 | 吨/公顷 | 2026-9 |
| 1984/1985 | 3.947 | 吨/公顷 | 2026-9 |
| 1983/1984 | 4.385 | 吨/公顷 | 2026-9 |
| 1982/1983 | 3.636 | 吨/公顷 | 2026-9 |
| 1981/1982 | 3.813 | 吨/公顷 | 2026-9 |
| 1980/1981 | 3.462 | 吨/公顷 | 2026-9 |
| 1979/1980 | 3.263 | 吨/公顷 | 2026-9 |
| 1978/1979 | 3.222 | 吨/公顷 | 2026-9 |
| 1977/1978 | 3.714 | 吨/公顷 | 2026-9 |
| 1976/1977 | 3.412 | 吨/公顷 | 2026-9 |
| 1975/1976 | 3.231 | 吨/公顷 | 2026-9 |
| 1974/1975 | 2.632 | 吨/公顷 | 2026-9 |
| 1973/1974 | 3 | 吨/公顷 | 2026-9 |
| 1972/1973 | 3 | 吨/公顷 | 2026-9 |
| 1971/1972 | 3.063 | 吨/公顷 | 2026-9 |
| 1970/1971 | 2.727 | 吨/公顷 | 2026-9 |
| 1969/1970 | 2.762 | 吨/公顷 | 2026-9 |
| 1968/1969 | 3.25 | 吨/公顷 | 2026-9 |
| 1967/1968 | 3.214 | 吨/公顷 | 2026-9 |
| 1966/1967 | 3.111 | 吨/公顷 | 2026-9 |
| 1965/1966 | 2.75 | 吨/公顷 | 2026-9 |
| 1964/1965 | 2.813 | 吨/公顷 | 2026-9 |
| 1963/1964 | 2.546 | 吨/公顷 | 2026-9 |
| 1962/1963 | 2.375 | 吨/公顷 | 2026-9 |
| 1961/1962 | 2.429 | 吨/公顷 | 2026-9 |
| 1960/1961 | 2.389 | 吨/公顷 | 2026-9 |