| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 2026/2027 | 1.467 | 吨/公顷 | 2026-9 |
| 2025/2026 | 1.591 | 吨/公顷 | 2026-9 |
| 2024/2025 | 1.275 | 吨/公顷 | 2026-9 |
| 2023/2024 | 1.63 | 吨/公顷 | 2026-9 |
| 2022/2023 | 1.539 | 吨/公顷 | 2026-9 |
| 2021/2022 | 1.36 | 吨/公顷 | 2026-9 |
| 2020/2021 | 1.101 | 吨/公顷 | 2026-9 |
| 2019/2020 | 1.249 | 吨/公顷 | 2026-9 |
| 2018/2019 | 1.16 | 吨/公顷 | 2026-9 |
| 2017/2018 | 1.34 | 吨/公顷 | 2026-9 |
| 2016/2017 | 1.539 | 吨/公顷 | 2026-9 |
| 2015/2016 | 1.284 | 吨/公顷 | 2026-9 |
| 2014/2015 | 1.232 | 吨/公顷 | 2026-9 |
| 2013/2014 | 1.18 | 吨/公顷 | 2026-9 |
| 2012/2013 | 0.991 | 吨/公顷 | 2026-9 |
| 2011/2012 | 1.389 | 吨/公顷 | 2026-9 |
| 2010/2011 | 0.771 | 吨/公顷 | 2026-9 |
| 2009/2010 | 1.019 | 吨/公顷 | 2026-9 |
| 2008/2009 | 1.367 | 吨/公顷 | 2026-9 |
| 2007/2008 | 1.127 | 吨/公顷 | 2026-9 |
| 2006/2007 | 1.033 | 吨/公顷 | 2026-9 |
| 2005/2006 | 1.11 | 吨/公顷 | 2026-9 |
| 2004/2005 | 1.184 | 吨/公顷 | 2026-9 |
| 2003/2004 | 1.391 | 吨/公顷 | 2026-9 |
| 2002/2003 | 0.862 | 吨/公顷 | 2026-9 |
| 2001/2002 | 0.786 | 吨/公顷 | 2026-9 |
| 2000/2001 | 0.82 | 吨/公顷 | 2026-9 |
| 1999/2000 | 0.925 | 吨/公顷 | 2026-9 |
| 1998/1999 | 0.835 | 吨/公顷 | 2026-9 |
| 1997/1998 | 1.267 | 吨/公顷 | 2026-9 |
| 1996/1997 | 0.639 | 吨/公顷 | 2026-9 |
| 1995/1996 | 0.943 | 吨/公顷 | 2026-9 |
| 1994/1995 | 0.61 | 吨/公顷 | 2026-9 |
| 1993/1994 | 0.892 | 吨/公顷 | 2026-9 |
| 1992/1993 | 0.908 | 吨/公顷 | 2026-9 |
| 1991/1992 | 0.671 | 吨/公顷 | 2026-9 |
| 1990/1991 | 1.232 | 吨/公顷 | 2026-9 |
| 1989/1990 | 1.627 | 吨/公顷 | 2026-9 |
| 1988/1989 | 1.071 | 吨/公顷 | 2026-9 |
| 1987/1988 | 1.376 | 吨/公顷 | 2026-9 |