| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 2026/2027 | 4.444 | 吨/公顷 | 2026-9 |
| 2025/2026 | 4.103 | 吨/公顷 | 2026-9 |
| 2024/2025 | 3.243 | 吨/公顷 | 2026-9 |
| 2023/2024 | 4.136 | 吨/公顷 | 2026-9 |
| 2022/2023 | 2.575 | 吨/公顷 | 2026-9 |
| 2021/2022 | 4.603 | 吨/公顷 | 2026-9 |
| 2020/2021 | 1.894 | 吨/公顷 | 2026-9 |
| 2019/2020 | 3.261 | 吨/公顷 | 2026-9 |
| 2018/2019 | 3.126 | 吨/公顷 | 2026-9 |
| 2017/2018 | 3.734 | 吨/公顷 | 2026-9 |
| 2016/2017 | 3.495 | 吨/公顷 | 2026-9 |
| 2015/2016 | 2.673 | 吨/公顷 | 2026-9 |
| 2014/2015 | 3.167 | 吨/公顷 | 2026-9 |
| 2013/2014 | 2.751 | 吨/公顷 | 2026-9 |
| 2012/2013 | 1.567 | 吨/公顷 | 2026-9 |
| 2011/2012 | 2.633 | 吨/公顷 | 2026-9 |
| 2010/2011 | 2.268 | 吨/公顷 | 2026-9 |
| 2009/2010 | 2.088 | 吨/公顷 | 2026-9 |
| 2008/2009 | 3.121 | 吨/公顷 | 2026-9 |
| 2007/2008 | 1.292 | 吨/公顷 | 2026-9 |
| 2006/2007 | 2.319 | 吨/公顷 | 2026-9 |
| 2005/2006 | 2.597 | 吨/公顷 | 2026-9 |
| 2004/2005 | 2.742 | 吨/公顷 | 2026-9 |
| 2003/2004 | 0.5 | 吨/公顷 | 2026-9 |
| 2002/2003 | 2.512 | 吨/公顷 | 2026-9 |
| 2001/2002 | 2.721 | 吨/公顷 | 2026-9 |
| 2000/2001 | 1.96 | 吨/公顷 | 2026-9 |
| 1999/2000 | 2.336 | 吨/公顷 | 2026-9 |
| 1998/1999 | 3.003 | 吨/公顷 | 2026-9 |
| 1997/1998 | 3.456 | 吨/公顷 | 2026-9 |
| 1996/1997 | 2.32 | 吨/公顷 | 2026-9 |
| 1995/1996 | 3.241 | 吨/公顷 | 2026-9 |
| 1994/1995 | 2.197 | 吨/公顷 | 2026-9 |
| 1993/1994 | 4.026 | 吨/公顷 | 2026-9 |
| 1992/1993 | 3.284 | 吨/公顷 | 2026-9 |
| 1991/1992 | 3.488 | 吨/公顷 | 2026-9 |
| 1990/1991 | 3.934 | 吨/公顷 | 2026-9 |
| 1989/1990 | 4.007 | 吨/公顷 | 2026-9 |
| 1988/1989 | 3.79 | 吨/公顷 | 2026-9 |
| 1987/1988 | 3.109 | 吨/公顷 | 2026-9 |