| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 2026/2027 | 1.842 | 吨/公顷 | 2026-9 |
| 2025/2026 | 1.897 | 吨/公顷 | 2026-9 |
| 2024/2025 | 1.755 | 吨/公顷 | 2026-9 |
| 2023/2024 | 2.049 | 吨/公顷 | 2026-9 |
| 2022/2023 | 1.894 | 吨/公顷 | 2026-9 |
| 2021/2022 | 1.71 | 吨/公顷 | 2026-9 |
| 2020/2021 | 1.77 | 吨/公顷 | 2026-9 |
| 2019/2020 | 1.44 | 吨/公顷 | 2026-9 |
| 2018/2019 | 1.33 | 吨/公顷 | 2026-9 |
| 2017/2018 | 1.581 | 吨/公顷 | 2026-9 |
| 2016/2017 | 1.099 | 吨/公顷 | 2026-9 |
| 2015/2016 | 1.116 | 吨/公顷 | 2026-9 |
| 2014/2015 | 1.247 | 吨/公顷 | 2026-9 |
| 2013/2014 | 1.136 | 吨/公顷 | 2026-9 |
| 2012/2013 | 0.974 | 吨/公顷 | 2026-9 |
| 2011/2012 | 1.138 | 吨/公顷 | 2026-9 |
| 2010/2011 | 0.994 | 吨/公顷 | 2026-9 |
| 2009/2010 | 1.09 | 吨/公顷 | 2026-9 |
| 2008/2009 | 1.09 | 吨/公顷 | 2026-9 |
| 2007/2008 | 1.069 | 吨/公顷 | 2026-9 |
| 2006/2007 | 1.056 | 吨/公顷 | 2026-9 |
| 2005/2006 | 1.217 | 吨/公顷 | 2026-9 |
| 2004/2005 | 1.078 | 吨/公顷 | 2026-9 |
| 2003/2004 | 0.883 | 吨/公顷 | 2026-9 |
| 2002/2003 | 0.867 | 吨/公顷 | 2026-9 |
| 2001/2002 | 0.605 | 吨/公顷 | 2026-9 |
| 2000/2001 | 0.609 | 吨/公顷 | 2026-9 |
| 1999/2000 | 0.551 | 吨/公顷 | 2026-9 |
| 1998/1999 | 0.641 | 吨/公顷 | 2026-9 |
| 1997/1998 | 0.617 | 吨/公顷 | 2026-9 |
| 1996/1997 | 0.659 | 吨/公顷 | 2026-9 |
| 1995/1996 | 0.455 | 吨/公顷 | 2026-9 |
| 1994/1995 | 0.83 | 吨/公顷 | 2026-9 |
| 1993/1994 | 0.85 | 吨/公顷 | 2026-9 |
| 1992/1993 | 1.071 | 吨/公顷 | 2026-9 |
| 1991/1992 | 0.914 | 吨/公顷 | 2026-9 |
| 1990/1991 | 1 | 吨/公顷 | 2026-9 |
| 1989/1990 | 0.822 | 吨/公顷 | 2026-9 |
| 1988/1989 | 0.699 | 吨/公顷 | 2026-9 |
| 1987/1988 | 0.729 | 吨/公顷 | 2026-9 |