| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 2026/2027 | 3.72 | 吨/公顷 | 2026-9 |
| 2025/2026 | 3.722 | 吨/公顷 | 2026-9 |
| 2024/2025 | 3.639 | 吨/公顷 | 2026-9 |
| 2023/2024 | 3.348 | 吨/公顷 | 2026-9 |
| 2022/2023 | 3.632 | 吨/公顷 | 2026-9 |
| 2021/2022 | 3.122 | 吨/公顷 | 2026-9 |
| 2020/2021 | 3.505 | 吨/公顷 | 2026-9 |
| 2019/2020 | 3.436 | 吨/公顷 | 2026-9 |
| 2018/2019 | 3.357 | 吨/公顷 | 2026-9 |
| 2017/2018 | 3.511 | 吨/公顷 | 2026-9 |
| 2016/2017 | 3.389 | 吨/公顷 | 2026-9 |
| 2015/2016 | 2.874 | 吨/公顷 | 2026-9 |
| 2014/2015 | 3.025 | 吨/公顷 | 2026-9 |
| 2013/2014 | 2.864 | 吨/公顷 | 2026-9 |
| 2012/2013 | 2.96 | 吨/公顷 | 2026-9 |
| 2011/2012 | 2.66 | 吨/公顷 | 2026-9 |
| 2010/2011 | 3.112 | 吨/公顷 | 2026-9 |
| 2009/2010 | 2.936 | 吨/公顷 | 2026-9 |
| 2008/2009 | 2.664 | 吨/公顷 | 2026-9 |
| 2007/2008 | 2.864 | 吨/公顷 | 2026-9 |
| 2006/2007 | 2.85 | 吨/公顷 | 2026-9 |
| 2005/2006 | 2.564 | 吨/公顷 | 2026-9 |
| 2004/2005 | 2.313 | 吨/公顷 | 2026-9 |
| 2003/2004 | 2.37 | 吨/公顷 | 2026-9 |
| 2002/2003 | 2.819 | 吨/公顷 | 2026-9 |
| 2001/2002 | 2.661 | 吨/公顷 | 2026-9 |
| 2000/2001 | 2.835 | 吨/公顷 | 2026-9 |
| 1999/2000 | 2.552 | 吨/公顷 | 2026-9 |
| 1998/1999 | 2.426 | 吨/公顷 | 2026-9 |
| 1997/1998 | 2.5 | 吨/公顷 | 2026-9 |
| 1996/1997 | 2.314 | 吨/公顷 | 2026-9 |
| 1995/1996 | 2.206 | 吨/公顷 | 2026-9 |
| 1994/1995 | 2.218 | 吨/公顷 | 2026-9 |
| 1993/1994 | 2.159 | 吨/公顷 | 2026-9 |
| 1992/1993 | 2.118 | 吨/公顷 | 2026-9 |
| 1991/1992 | 1.99 | 吨/公顷 | 2026-9 |
| 1990/1991 | 1.615 | 吨/公顷 | 2026-9 |
| 1989/1990 | 1.761 | 吨/公顷 | 2026-9 |
| 1988/1989 | 1.942 | 吨/公顷 | 2026-9 |
| 1987/1988 | 1.708 | 吨/公顷 | 2026-9 |
| 1986/1987 | 1.866 | 吨/公顷 | 2026-9 |
| 1985/1986 | 1.492 | 吨/公顷 | 2026-9 |
| 1984/1985 | 1.8 | 吨/公顷 | 2026-9 |
| 1983/1984 | 1.65 | 吨/公顷 | 2026-9 |
| 1982/1983 | 1.813 | 吨/公顷 | 2026-9 |
| 1981/1982 | 1.565 | 吨/公顷 | 2026-9 |
| 1980/1981 | 1.788 | 吨/公顷 | 2026-9 |
| 1979/1980 | 1.727 | 吨/公顷 | 2026-9 |
| 1978/1979 | 1.24 | 吨/公顷 | 2026-9 |
| 1977/1978 | 1.226 | 吨/公顷 | 2026-9 |
| 1976/1977 | 1.77 | 吨/公顷 | 2026-9 |
| 1975/1976 | 1.75 | 吨/公顷 | 2026-9 |
| 1974/1975 | 1.699 | 吨/公顷 | 2026-9 |
| 1973/1974 | 1.531 | 吨/公顷 | 2026-9 |
| 1972/1973 | 1.386 | 吨/公顷 | 2026-9 |
| 1971/1972 | 1.291 | 吨/公顷 | 2026-9 |
| 1970/1971 | 1.21 | 吨/公顷 | 2026-9 |
| 1969/1970 | 1.144 | 吨/公顷 | 2026-9 |
| 1968/1969 | 1.167 | 吨/公顷 | 2026-9 |
| 1967/1968 | 0.906 | 吨/公顷 | 2026-9 |
| 1966/1967 | 1.17 | 吨/公顷 | 2026-9 |
| 1965/1966 | 1.212 | 吨/公顷 | 2026-9 |
| 1964/1965 | 1.211 | 吨/公顷 | 2026-9 |