| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 2026/2027 | 1 | 吨/公顷 | 2026-9 |
| 2025/2026 | 1 | 吨/公顷 | 2026-9 |
| 2024/2025 | 1 | 吨/公顷 | 2026-9 |
| 2023/2024 | 1 | 吨/公顷 | 2026-9 |
| 2022/2023 | 1 | 吨/公顷 | 2026-9 |
| 2021/2022 | 1 | 吨/公顷 | 2026-9 |
| 2020/2021 | 1.04 | 吨/公顷 | 2026-9 |
| 2019/2020 | 0.8 | 吨/公顷 | 2026-9 |
| 2018/2019 | 0.8 | 吨/公顷 | 2026-9 |
| 2017/2018 | 0.8 | 吨/公顷 | 2026-9 |
| 2016/2017 | 1.2 | 吨/公顷 | 2026-9 |
| 2015/2016 | 1 | 吨/公顷 | 2026-9 |
| 2014/2015 | 0.833 | 吨/公顷 | 2026-9 |
| 2013/2014 | 0.6 | 吨/公顷 | 2026-9 |
| 2012/2013 | 0.889 | 吨/公顷 | 2026-9 |
| 2011/2012 | 1.036 | 吨/公顷 | 2026-9 |
| 2010/2011 | 0.55 | 吨/公顷 | 2026-9 |
| 2009/2010 | 0.548 | 吨/公顷 | 2026-9 |
| 2008/2009 | 0.37 | 吨/公顷 | 2026-9 |
| 2007/2008 | 0.448 | 吨/公顷 | 2026-9 |
| 2006/2007 | 0.5 | 吨/公顷 | 2026-9 |
| 2005/2006 | 0.889 | 吨/公顷 | 2026-9 |
| 2004/2005 | 0.724 | 吨/公顷 | 2026-9 |
| 2003/2004 | 1 | 吨/公顷 | 2026-9 |
| 2002/2003 | 1.036 | 吨/公顷 | 2026-9 |
| 2001/2002 | 0.85 | 吨/公顷 | 2026-9 |
| 2000/2001 | 0.923 | 吨/公顷 | 2026-9 |
| 1999/2000 | 1.25 | 吨/公顷 | 2026-9 |
| 1998/1999 | 0.818 | 吨/公顷 | 2026-9 |
| 1997/1998 | 0.86 | 吨/公顷 | 2026-9 |
| 1996/1997 | 0.865 | 吨/公顷 | 2026-9 |
| 1995/1996 | 0.691 | 吨/公顷 | 2026-9 |
| 1994/1995 | 0.865 | 吨/公顷 | 2026-9 |
| 1993/1994 | 1.185 | 吨/公顷 | 2026-9 |
| 1992/1993 | 1 | 吨/公顷 | 2026-9 |
| 1991/1992 | 0.702 | 吨/公顷 | 2026-9 |
| 1990/1991 | 0.875 | 吨/公顷 | 2026-9 |
| 1989/1990 | 0.656 | 吨/公顷 | 2026-9 |
| 1988/1989 | 0.818 | 吨/公顷 | 2026-9 |
| 1987/1988 | 0.733 | 吨/公顷 | 2026-9 |
| 1986/1987 | 0.833 | 吨/公顷 | 2026-9 |
| 1985/1986 | 0.5 | 吨/公顷 | 2026-9 |
| 1984/1985 | 0.5 | 吨/公顷 | 2026-9 |
| 1983/1984 | 0.56 | 吨/公顷 | 2026-9 |
| 1982/1983 | 0.596 | 吨/公顷 | 2026-9 |
| 1981/1982 | 0.698 | 吨/公顷 | 2026-9 |
| 1980/1981 | 0.747 | 吨/公顷 | 2026-9 |
| 1979/1980 | 0.298 | 吨/公顷 | 2026-9 |
| 1978/1979 | 1.035 | 吨/公顷 | 2026-9 |
| 1977/1978 | 0.3 | 吨/公顷 | 2026-9 |
| 1976/1977 | 0.241 | 吨/公顷 | 2026-9 |
| 1975/1976 | 0.226 | 吨/公顷 | 2026-9 |
| 1974/1975 | 0.471 | 吨/公顷 | 2026-9 |
| 1973/1974 | 0.525 | 吨/公顷 | 2026-9 |
| 1972/1973 | 0.595 | 吨/公顷 | 2026-9 |
| 1971/1972 | 0.462 | 吨/公顷 | 2026-9 |
| 1970/1971 | 0.424 | 吨/公顷 | 2026-9 |
| 1969/1970 | 0.639 | 吨/公顷 | 2026-9 |
| 1968/1969 | 0.287 | 吨/公顷 | 2026-9 |
| 1967/1968 | 1.026 | 吨/公顷 | 2026-9 |
| 1966/1967 | 0.359 | 吨/公顷 | 2026-9 |
| 1965/1966 | 1.105 | 吨/公顷 | 2026-9 |
| 1964/1965 | 1.054 | 吨/公顷 | 2026-9 |
| 1963/1964 | 0.303 | 吨/公顷 | 2026-9 |
| 1962/1963 | 0.343 | 吨/公顷 | 2026-9 |
| 1961/1962 | 0.653 | 吨/公顷 | 2026-9 |
| 1960/1961 | 0.173 | 吨/公顷 | 2026-9 |