| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 2026/2027 | 2.525 | 吨/公顷 | 2026-9 |
| 2025/2026 | 2.474 | 吨/公顷 | 2026-9 |
| 2024/2025 | 2.396 | 吨/公顷 | 2026-9 |
| 2023/2024 | 2.5 | 吨/公顷 | 2026-9 |
| 2022/2023 | 2.222 | 吨/公顷 | 2026-9 |
| 2021/2022 | 2.593 | 吨/公顷 | 2026-9 |
| 2020/2021 | 2.521 | 吨/公顷 | 2026-9 |
| 2019/2020 | 2.501 | 吨/公顷 | 2026-9 |
| 2018/2019 | 2.186 | 吨/公顷 | 2026-9 |
| 2017/2018 | 1.933 | 吨/公顷 | 2026-9 |
| 2016/2017 | 1.897 | 吨/公顷 | 2026-9 |
| 2015/2016 | 2.168 | 吨/公顷 | 2026-9 |
| 2014/2015 | 1.965 | 吨/公顷 | 2026-9 |
| 2013/2014 | 1.872 | 吨/公顷 | 2026-9 |
| 2012/2013 | 1.749 | 吨/公顷 | 2026-9 |
| 2011/2012 | 1.679 | 吨/公顷 | 2026-9 |
| 2010/2011 | 1.628 | 吨/公顷 | 2026-9 |
| 2009/2010 | 1.55 | 吨/公顷 | 2026-9 |
| 2008/2009 | 1.561 | 吨/公顷 | 2026-9 |
| 2007/2008 | 1.377 | 吨/公顷 | 2026-9 |
| 2006/2007 | 1.327 | 吨/公顷 | 2026-9 |
| 2005/2006 | 1.274 | 吨/公顷 | 2026-9 |
| 2004/2005 | 1.206 | 吨/公顷 | 2026-9 |
| 2003/2004 | 1.174 | 吨/公顷 | 2026-9 |
| 2002/2003 | 0.874 | 吨/公顷 | 2026-9 |
| 2001/2002 | 1.094 | 吨/公顷 | 2026-9 |
| 2000/2001 | 1.103 | 吨/公顷 | 2026-9 |
| 1999/2000 | 1.019 | 吨/公顷 | 2026-9 |
| 1998/1999 | 1 | 吨/公顷 | 2026-9 |
| 1997/1998 | 0.944 | 吨/公顷 | 2026-9 |
| 1996/1997 | 1.084 | 吨/公顷 | 2026-9 |
| 1995/1996 | 0.979 | 吨/公顷 | 2026-9 |
| 1994/1995 | 1.1 | 吨/公顷 | 2026-9 |
| 1993/1994 | 1.053 | 吨/公顷 | 2026-9 |
| 1992/1993 | 1.405 | 吨/公顷 | 2026-9 |
| 1991/1992 | 1.2 | 吨/公顷 | 2026-9 |
| 1990/1991 | 1.251 | 吨/公顷 | 2026-9 |
| 1989/1990 | 1.228 | 吨/公顷 | 2026-9 |
| 1988/1989 | 1.22 | 吨/公顷 | 2026-9 |
| 1987/1988 | 1.266 | 吨/公顷 | 2026-9 |
| 1986/1987 | 1.094 | 吨/公顷 | 2026-9 |
| 1985/1986 | 0.986 | 吨/公顷 | 2026-9 |
| 1984/1985 | 0.991 | 吨/公顷 | 2026-9 |
| 1983/1984 | 1.023 | 吨/公顷 | 2026-9 |
| 1982/1983 | 1.286 | 吨/公顷 | 2026-9 |
| 1981/1982 | 1.156 | 吨/公顷 | 2026-9 |
| 1980/1981 | 1.294 | 吨/公顷 | 2026-9 |
| 1979/1980 | 1.156 | 吨/公顷 | 2026-9 |
| 1978/1979 | 1.112 | 吨/公顷 | 2026-9 |
| 1977/1978 | 0.865 | 吨/公顷 | 2026-9 |
| 1976/1977 | 1.102 | 吨/公顷 | 2026-9 |
| 1975/1976 | 1.501 | 吨/公顷 | 2026-9 |
| 1974/1975 | 0.751 | 吨/公顷 | 2026-9 |
| 1973/1974 | 0.8 | 吨/公顷 | 2026-9 |
| 1972/1973 | 0.82 | 吨/公顷 | 2026-9 |
| 1971/1972 | 0.881 | 吨/公顷 | 2026-9 |
| 1970/1971 | 0.872 | 吨/公顷 | 2026-9 |
| 1969/1970 | 0.863 | 吨/公顷 | 2026-9 |
| 1968/1969 | 0.853 | 吨/公顷 | 2026-9 |
| 1967/1968 | 0.846 | 吨/公顷 | 2026-9 |
| 1966/1967 | 0.837 | 吨/公顷 | 2026-9 |
| 1965/1966 | 0.83 | 吨/公顷 | 2026-9 |
| 1964/1965 | 0.82 | 吨/公顷 | 2026-9 |
| 1963/1964 | 0.81 | 吨/公顷 | 2026-9 |
| 1962/1963 | 0.813 | 吨/公顷 | 2026-9 |
| 1961/1962 | 0.83 | 吨/公顷 | 2026-9 |
| 1960/1961 | 0.833 | 吨/公顷 | 2026-9 |