| 年度 | 数值 | 单位 | 发布时间 |
|---|
| 2026/2027 | 5.556 | 吨/公顷 | 2026-9 |
| 2025/2026 | 5.294 | 吨/公顷 | 2026-9 |
| 2024/2025 | 5 | 吨/公顷 | 2026-9 |
| 2023/2024 | 5.012 | 吨/公顷 | 2026-9 |
| 2022/2023 | 5.826 | 吨/公顷 | 2026-9 |
| 2021/2022 | 5.439 | 吨/公顷 | 2026-9 |
| 2020/2021 | 4.54 | 吨/公顷 | 2026-9 |
| 2019/2020 | 3.839 | 吨/公顷 | 2026-9 |
| 2018/2019 | 3.741 | 吨/公顷 | 2026-9 |
| 2017/2018 | 3.407 | 吨/公顷 | 2026-9 |
| 2016/2017 | 3.792 | 吨/公顷 | 2026-9 |
| 2015/2016 | 3.188 | 吨/公顷 | 2026-9 |
| 2014/2015 | 2.68 | 吨/公顷 | 2026-9 |
| 2013/2014 | 3.633 | 吨/公顷 | 2026-9 |
| 2012/2013 | 4.3 | 吨/公顷 | 2026-9 |
| 2011/2012 | 5.051 | 吨/公顷 | 2026-9 |
| 2010/2011 | 3.5 | 吨/公顷 | 2026-9 |
| 2009/2010 | 4.357 | 吨/公顷 | 2026-9 |
| 2008/2009 | 3.958 | 吨/公顷 | 2026-9 |
| 2007/2008 | 3.54 | 吨/公顷 | 2026-9 |
| 2006/2007 | 3.533 | 吨/公顷 | 2026-9 |
| 2005/2006 | 3.667 | 吨/公顷 | 2026-9 |
| 2004/2005 | 3.684 | 吨/公顷 | 2026-9 |
| 2003/2004 | 3.661 | 吨/公顷 | 2026-9 |
| 2002/2003 | 4.07 | 吨/公顷 | 2026-9 |
| 2001/2002 | 3.375 | 吨/公顷 | 2026-9 |
| 2000/2001 | 3.473 | 吨/公顷 | 2026-9 |
| 1999/2000 | 3.62 | 吨/公顷 | 2026-9 |
| 1998/1999 | 3.904 | 吨/公顷 | 2026-9 |
| 1997/1998 | 4.095 | 吨/公顷 | 2026-9 |
| 1996/1997 | 3.425 | 吨/公顷 | 2026-9 |
| 1995/1996 | 2.884 | 吨/公顷 | 2026-9 |
| 1994/1995 | 3.076 | 吨/公顷 | 2026-9 |
| 1993/1994 | 3.175 | 吨/公顷 | 2026-9 |
| 1992/1993 | 3.162 | 吨/公顷 | 2026-9 |
| 1991/1992 | 3.75 | 吨/公顷 | 2026-9 |
| 1990/1991 | 3 | 吨/公顷 | 2026-9 |
| 1989/1990 | 1.946 | 吨/公顷 | 2026-9 |
| 1988/1989 | 1.837 | 吨/公顷 | 2026-9 |
| 1987/1988 | 1.583 | 吨/公顷 | 2026-9 |
| 1986/1987 | 1.6 | 吨/公顷 | 2026-9 |
| 1985/1986 | 1.681 | 吨/公顷 | 2026-9 |
| 1984/1985 | 1.714 | 吨/公顷 | 2026-9 |
| 1983/1984 | 1.421 | 吨/公顷 | 2026-9 |
| 1982/1983 | 2.227 | 吨/公顷 | 2026-9 |
| 1981/1982 | 2.191 | 吨/公顷 | 2026-9 |
| 1980/1981 | 2.136 | 吨/公顷 | 2026-9 |
| 1979/1980 | 1.889 | 吨/公顷 | 2026-9 |
| 1978/1979 | 2.074 | 吨/公顷 | 2026-9 |
| 1977/1978 | 2.269 | 吨/公顷 | 2026-9 |
| 1976/1977 | 1.852 | 吨/公顷 | 2026-9 |
| 1975/1976 | 1.8 | 吨/公顷 | 2026-9 |
| 1974/1975 | 1.357 | 吨/公顷 | 2026-9 |