| 年度 | 数值 | 单位 | 发布时间 |
|---|
| 2026/2027 | 1.25 | 吨/公顷 | 2026-9 |
| 2025/2026 | 1.4 | 吨/公顷 | 2026-9 |
| 2024/2025 | 1.256 | 吨/公顷 | 2026-9 |
| 2023/2024 | 1.254 | 吨/公顷 | 2026-9 |
| 2022/2023 | 1.254 | 吨/公顷 | 2026-9 |
| 2021/2022 | 1.231 | 吨/公顷 | 2026-9 |
| 2020/2021 | 1.226 | 吨/公顷 | 2026-9 |
| 2019/2020 | 1.228 | 吨/公顷 | 2026-9 |
| 2018/2019 | 1.241 | 吨/公顷 | 2026-9 |
| 2017/2018 | 1.232 | 吨/公顷 | 2026-9 |
| 2016/2017 | 1.223 | 吨/公顷 | 2026-9 |
| 2015/2016 | 1.39 | 吨/公顷 | 2026-9 |
| 2014/2015 | 1.195 | 吨/公顷 | 2026-9 |
| 2013/2014 | 0.925 | 吨/公顷 | 2026-9 |
| 2012/2013 | 1.192 | 吨/公顷 | 2026-9 |
| 2011/2012 | 1.245 | 吨/公顷 | 2026-9 |
| 2010/2011 | 1.193 | 吨/公顷 | 2026-9 |
| 2009/2010 | 1.264 | 吨/公顷 | 2026-9 |
| 2008/2009 | 1.192 | 吨/公顷 | 2026-9 |
| 2007/2008 | 1.175 | 吨/公顷 | 2026-9 |
| 2006/2007 | 1.155 | 吨/公顷 | 2026-9 |
| 2005/2006 | 1.157 | 吨/公顷 | 2026-9 |
| 2004/2005 | 1.092 | 吨/公顷 | 2026-9 |
| 2003/2004 | 1.272 | 吨/公顷 | 2026-9 |
| 2002/2003 | 1.266 | 吨/公顷 | 2026-9 |
| 2001/2002 | 1.306 | 吨/公顷 | 2026-9 |
| 2000/2001 | 1.21 | 吨/公顷 | 2026-9 |
| 1999/2000 | 1.276 | 吨/公顷 | 2026-9 |
| 1998/1999 | 0.986 | 吨/公顷 | 2026-9 |
| 1997/1998 | 1.125 | 吨/公顷 | 2026-9 |
| 1996/1997 | 1.053 | 吨/公顷 | 2026-9 |
| 1995/1996 | 0.865 | 吨/公顷 | 2026-9 |
| 1994/1995 | 1.471 | 吨/公顷 | 2026-9 |
| 1993/1994 | 1.95 | 吨/公顷 | 2026-9 |
| 1992/1993 | 1.933 | 吨/公顷 | 2026-9 |
| 1991/1992 | 1.62 | 吨/公顷 | 2026-9 |
| 1990/1991 | 1.467 | 吨/公顷 | 2026-9 |
| 1989/1990 | 1.435 | 吨/公顷 | 2026-9 |
| 1988/1989 | 1.304 | 吨/公顷 | 2026-9 |
| 1987/1988 | 0.764 | 吨/公顷 | 2026-9 |
| 1986/1987 | 0.648 | 吨/公顷 | 2026-9 |
| 1985/1986 | 1.486 | 吨/公顷 | 2026-9 |
| 1984/1985 | 1.171 | 吨/公顷 | 2026-9 |
| 1983/1984 | 1.152 | 吨/公顷 | 2026-9 |
| 1982/1983 | 1.118 | 吨/公顷 | 2026-9 |
| 1981/1982 | 1.309 | 吨/公顷 | 2026-9 |
| 1980/1981 | 1.15 | 吨/公顷 | 2026-9 |
| 1979/1980 | 1.317 | 吨/公顷 | 2026-9 |
| 1978/1979 | 1.178 | 吨/公顷 | 2026-9 |
| 1977/1978 | 0.954 | 吨/公顷 | 2026-9 |
| 1976/1977 | 0.841 | 吨/公顷 | 2026-9 |
| 1975/1976 | 1.35 | 吨/公顷 | 2026-9 |