| 年度 | 数值 | 单位 | 发布时间 |
|---|
| 2026/2027 | 6.957 | 吨/公顷 | 2026-9 |
| 2025/2026 | 7.044 | 吨/公顷 | 2026-9 |
| 2024/2025 | 7.188 | 吨/公顷 | 2026-9 |
| 2023/2024 | 7.08 | 吨/公顷 | 2026-9 |
| 2022/2023 | 6.787 | 吨/公顷 | 2026-9 |
| 2021/2022 | 6.519 | 吨/公顷 | 2026-9 |
| 2020/2021 | 6.8 | 吨/公顷 | 2026-9 |
| 2019/2020 | 6.717 | 吨/公顷 | 2026-9 |
| 2018/2019 | 6.93 | 吨/公顷 | 2026-9 |
| 2017/2018 | 6.465 | 吨/公顷 | 2026-9 |
| 2016/2017 | 6.363 | 吨/公顷 | 2026-9 |
| 2015/2016 | 6.294 | 吨/公顷 | 2026-9 |
| 2014/2015 | 6.044 | 吨/公顷 | 2026-9 |
| 2013/2014 | 6.174 | 吨/公顷 | 2026-9 |
| 2012/2013 | 6.084 | 吨/公顷 | 2026-9 |
| 2011/2012 | 6.027 | 吨/公顷 | 2026-9 |
| 2010/2011 | 5.96 | 吨/公顷 | 2026-9 |
| 2009/2010 | 6.012 | 吨/公顷 | 2026-9 |
| 2008/2009 | 5.848 | 吨/公顷 | 2026-9 |
| 2007/2008 | 5.91 | 吨/公顷 | 2026-9 |
| 2006/2007 | 6.111 | 吨/公顷 | 2026-9 |
| 2005/2006 | 5.8 | 吨/公顷 | 2026-9 |
| 2004/2005 | 6 | 吨/公顷 | 2026-9 |
| 2003/2004 | 5.867 | 吨/公顷 | 2026-9 |
| 2002/2003 | 6.114 | 吨/公顷 | 2026-9 |
| 2001/2002 | 5.907 | 吨/公顷 | 2026-9 |
| 2000/2001 | 5.121 | 吨/公顷 | 2026-9 |
| 1999/2000 | 5.049 | 吨/公顷 | 2026-9 |
| 1998/1999 | 4.851 | 吨/公顷 | 2026-9 |
| 1997/1998 | 4.5 | 吨/公顷 | 2026-9 |
| 1996/1997 | 3.957 | 吨/公顷 | 2026-9 |
| 1995/1996 | 2.9 | 吨/公顷 | 2026-9 |
| 1994/1995 | 3.487 | 吨/公顷 | 2026-9 |
| 1993/1994 | 4.488 | 吨/公顷 | 2026-9 |
| 1992/1993 | 5.109 | 吨/公顷 | 2026-9 |
| 1991/1992 | 5.887 | 吨/公顷 | 2026-9 |
| 1990/1991 | 6.152 | 吨/公顷 | 2026-9 |
| 1989/1990 | 6.278 | 吨/公顷 | 2026-9 |
| 1988/1989 | 7 | 吨/公顷 | 2026-9 |
| 1987/1988 | 6.866 | 吨/公顷 | 2026-9 |