| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 2026/2027 | 2.5 | 吨/公顷 | 2026-9 |
| 2025/2026 | 2.391 | 吨/公顷 | 2026-9 |
| 2024/2025 | 2.4 | 吨/公顷 | 2026-9 |
| 2023/2024 | 2.6 | 吨/公顷 | 2026-9 |
| 2022/2023 | 2.253 | 吨/公顷 | 2026-9 |
| 2021/2022 | 2.639 | 吨/公顷 | 2026-9 |
| 2020/2021 | 2.055 | 吨/公顷 | 2026-9 |
| 2019/2020 | 2.292 | 吨/公顷 | 2026-9 |
| 2018/2019 | 2.577 | 吨/公顷 | 2026-9 |
| 2017/2018 | 1.973 | 吨/公顷 | 2026-9 |
| 2016/2017 | 2.307 | 吨/公顷 | 2026-9 |
| 2015/2016 | 1.84 | 吨/公顷 | 2026-9 |
| 2014/2015 | 2.167 | 吨/公顷 | 2026-9 |
| 2013/2014 | 2.053 | 吨/公顷 | 2026-9 |
| 2012/2013 | 1.708 | 吨/公顷 | 2026-9 |
| 2011/2012 | 2.04 | 吨/公顷 | 2026-9 |
| 2010/2011 | 1.62 | 吨/公顷 | 2026-9 |
| 2009/2010 | 1.676 | 吨/公顷 | 2026-9 |
| 2008/2009 | 1.511 | 吨/公顷 | 2026-9 |
| 2007/2008 | 1.24 | 吨/公顷 | 2026-9 |
| 2006/2007 | 1.245 | 吨/公顷 | 2026-9 |
| 2005/2006 | 1.453 | 吨/公顷 | 2026-9 |
| 2004/2005 | 1.418 | 吨/公顷 | 2026-9 |
| 2003/2004 | 1.221 | 吨/公顷 | 2026-9 |
| 2002/2003 | 1.276 | 吨/公顷 | 2026-9 |
| 2001/2002 | 1.014 | 吨/公顷 | 2026-9 |
| 2000/2001 | 1.049 | 吨/公顷 | 2026-9 |
| 1999/2000 | 1.071 | 吨/公顷 | 2026-9 |
| 1998/1999 | 1.161 | 吨/公顷 | 2026-9 |
| 1997/1998 | 1.286 | 吨/公顷 | 2026-9 |
| 1996/1997 | 0.938 | 吨/公顷 | 2026-9 |
| 1995/1996 | 0.957 | 吨/公顷 | 2026-9 |
| 1994/1995 | 0.698 | 吨/公顷 | 2026-9 |
| 1993/1994 | 0.857 | 吨/公顷 | 2026-9 |
| 1992/1993 | 0.784 | 吨/公顷 | 2026-9 |
| 1991/1992 | 1.324 | 吨/公顷 | 2026-9 |
| 1990/1991 | 1.125 | 吨/公顷 | 2026-9 |
| 1989/1990 | 1.181 | 吨/公顷 | 2026-9 |
| 1988/1989 | 1.329 | 吨/公顷 | 2026-9 |
| 1987/1988 | 1.149 | 吨/公顷 | 2026-9 |