| 年度 | 数值 | 单位 | 发布时间 |
|---|
| 2026/2027 | 3.388 | 吨/公顷 | 2026-9 |
| 2025/2026 | 3.388 | 吨/公顷 | 2026-9 |
| 2024/2025 | 3.396 | 吨/公顷 | 2026-9 |
| 2023/2024 | 3.261 | 吨/公顷 | 2026-9 |
| 2022/2023 | 3.279 | 吨/公顷 | 2026-9 |
| 2021/2022 | 3.257 | 吨/公顷 | 2026-9 |
| 2020/2021 | 3.246 | 吨/公顷 | 2026-9 |
| 2019/2020 | 3.202 | 吨/公顷 | 2026-9 |
| 2018/2019 | 3.068 | 吨/公顷 | 2026-9 |
| 2017/2018 | 3.105 | 吨/公顷 | 2026-9 |
| 2016/2017 | 3.016 | 吨/公顷 | 2026-9 |
| 2015/2016 | 2.883 | 吨/公顷 | 2026-9 |
| 2014/2015 | 2.995 | 吨/公顷 | 2026-9 |
| 2013/2014 | 2.915 | 吨/公顷 | 2026-9 |
| 2012/2013 | 2.84 | 吨/公顷 | 2026-9 |
| 2011/2012 | 2.79 | 吨/公顷 | 2026-9 |
| 2010/2011 | 2.762 | 吨/公顷 | 2026-9 |
| 2009/2010 | 2.473 | 吨/公顷 | 2026-9 |
| 2008/2009 | 2.581 | 吨/公顷 | 2026-9 |
| 2007/2008 | 2.66 | 吨/公顷 | 2026-9 |
| 2006/2007 | 2.392 | 吨/公顷 | 2026-9 |
| 2005/2006 | 2.298 | 吨/公顷 | 2026-9 |
| 2004/2005 | 2.104 | 吨/公顷 | 2026-9 |
| 2003/2004 | 1.972 | 吨/公顷 | 2026-9 |
| 2002/2003 | 1.865 | 吨/公顷 | 2026-9 |
| 2001/2002 | 1.813 | 吨/公顷 | 2026-9 |
| 2000/2001 | 1.815 | 吨/公顷 | 2026-9 |
| 1999/2000 | 1.745 | 吨/公顷 | 2026-9 |
| 1998/1999 | 1.769 | 吨/公顷 | 2026-9 |
| 1997/1998 | 1.491 | 吨/公顷 | 2026-9 |
| 1996/1997 | 1.551 | 吨/公顷 | 2026-9 |
| 1995/1996 | 1.567 | 吨/公顷 | 2026-9 |
| 1994/1995 | 1.528 | 吨/公顷 | 2026-9 |
| 1993/1994 | 1.623 | 吨/公顷 | 2026-9 |
| 1992/1993 | 1.444 | 吨/公顷 | 2026-9 |
| 1991/1992 | 1.29 | 吨/公顷 | 2026-9 |
| 1990/1991 | 1.321 | 吨/公顷 | 2026-9 |
| 1989/1990 | 1.223 | 吨/公顷 | 2026-9 |
| 1988/1989 | 1.207 | 吨/公顷 | 2026-9 |
| 1987/1988 | 1.176 | 吨/公顷 | 2026-9 |
| 1986/1987 | 1.127 | 吨/公顷 | 2026-9 |
| 1985/1986 | 1.106 | 吨/公顷 | 2026-9 |
| 1984/1985 | 1.038 | 吨/公顷 | 2026-9 |
| 1983/1984 | 1.023 | 吨/公顷 | 2026-9 |
| 1982/1983 | 0.99 | 吨/公顷 | 2026-9 |
| 1981/1982 | 0.979 | 吨/公顷 | 2026-9 |
| 1980/1981 | 0.96 | 吨/公顷 | 2026-9 |
| 1979/1980 | 0.976 | 吨/公顷 | 2026-9 |
| 1978/1979 | 0.95 | 吨/公顷 | 2026-9 |
| 1977/1978 | 0.857 | 吨/公顷 | 2026-9 |
| 1976/1977 | 0.856 | 吨/公顷 | 2026-9 |
| 1975/1976 | 0.85 | 吨/公顷 | 2026-9 |
| 1974/1975 | 0.839 | 吨/公顷 | 2026-9 |
| 1973/1974 | 0.828 | 吨/公顷 | 2026-9 |
| 1972/1973 | 0.788 | 吨/公顷 | 2026-9 |
| 1971/1972 | 0.828 | 吨/公顷 | 2026-9 |
| 1970/1971 | 0.838 | 吨/公顷 | 2026-9 |
| 1969/1970 | 0.83 | 吨/公顷 | 2026-9 |
| 1968/1969 | 0.768 | 吨/公顷 | 2026-9 |
| 1967/1968 | 0.72 | 吨/公顷 | 2026-9 |
| 1966/1967 | 0.691 | 吨/公顷 | 2026-9 |
| 1965/1966 | 0.655 | 吨/公顷 | 2026-9 |
| 1964/1965 | 0.683 | 吨/公顷 | 2026-9 |
| 1963/1964 | 0.681 | 吨/公顷 | 2026-9 |
| 1962/1963 | 0.653 | 吨/公顷 | 2026-9 |
| 1961/1962 | 0.628 | 吨/公顷 | 2026-9 |
| 1960/1961 | 0.592 | 吨/公顷 | 2026-9 |