| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 2026/2027 | 2 | 吨/公顷 | 2026-9 |
| 2025/2026 | 1.667 | 吨/公顷 | 2026-9 |
| 2024/2025 | 2 | 吨/公顷 | 2026-9 |
| 2023/2024 | 2.1 | 吨/公顷 | 2026-9 |
| 2022/2023 | 1.786 | 吨/公顷 | 2026-9 |
| 2021/2022 | 0.792 | 吨/公顷 | 2026-9 |
| 2020/2021 | 1.8 | 吨/公顷 | 2026-9 |
| 2019/2020 | 1.36 | 吨/公顷 | 2026-9 |
| 2018/2019 | 2.385 | 吨/公顷 | 2026-9 |
| 2017/2018 | 1.603 | 吨/公顷 | 2026-9 |
| 2016/2017 | 2.775 | 吨/公顷 | 2026-9 |
| 2015/2016 | 2.75 | 吨/公顷 | 2026-9 |
| 2014/2015 | 3 | 吨/公顷 | 2026-9 |
| 2013/2014 | 2.908 | 吨/公顷 | 2026-9 |
| 2012/2013 | 2.615 | 吨/公顷 | 2026-9 |
| 2011/2012 | 2.618 | 吨/公顷 | 2026-9 |
| 2010/2011 | 1.934 | 吨/公顷 | 2026-9 |
| 2009/2010 | 2.197 | 吨/公顷 | 2026-9 |
| 2008/2009 | 2.258 | 吨/公顷 | 2026-9 |
| 2007/2008 | 2.233 | 吨/公顷 | 2026-9 |
| 2006/2007 | 0.714 | 吨/公顷 | 2026-9 |
| 2005/2006 | 1.5 | 吨/公顷 | 2026-9 |
| 2004/2005 | 2.015 | 吨/公顷 | 2026-9 |
| 2003/2004 | 1.133 | 吨/公顷 | 2026-9 |
| 2002/2003 | 1.774 | 吨/公顷 | 2026-9 |
| 2001/2002 | 1.35 | 吨/公顷 | 2026-9 |
| 2000/2001 | 0.923 | 吨/公顷 | 2026-9 |
| 1999/2000 | 1.231 | 吨/公顷 | 2026-9 |
| 1998/1999 | 0.824 | 吨/公顷 | 2026-9 |
| 1997/1998 | 1.2 | 吨/公顷 | 2026-9 |
| 1996/1997 | 1.346 | 吨/公顷 | 2026-9 |
| 1995/1996 | 1.171 | 吨/公顷 | 2026-9 |
| 1994/1995 | 0.917 | 吨/公顷 | 2026-9 |
| 1993/1994 | 1.025 | 吨/公顷 | 2026-9 |
| 1992/1993 | 1.63 | 吨/公顷 | 2026-9 |
| 1991/1992 | 1.815 | 吨/公顷 | 2026-9 |
| 1990/1991 | 1.607 | 吨/公顷 | 2026-9 |
| 1989/1990 | 1.19 | 吨/公顷 | 2026-9 |
| 1988/1989 | 2.603 | 吨/公顷 | 2026-9 |
| 1987/1988 | 1.741 | 吨/公顷 | 2026-9 |