| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 2026/2027 | 0.466 | 吨/公顷 | 2026-9 |
| 2025/2026 | 0.521 | 吨/公顷 | 2026-9 |
| 2024/2025 | 0.443 | 吨/公顷 | 2026-9 |
| 2023/2024 | 0.441 | 吨/公顷 | 2026-9 |
| 2022/2023 | 0.29 | 吨/公顷 | 2026-9 |
| 2021/2022 | 0.598 | 吨/公顷 | 2026-9 |
| 2020/2021 | 0.607 | 吨/公顷 | 2026-9 |
| 2019/2020 | 0.657 | 吨/公顷 | 2026-9 |
| 2018/2019 | 0.64 | 吨/公顷 | 2026-9 |
| 2017/2018 | 0.658 | 吨/公顷 | 2026-9 |
| 2016/2017 | 0.499 | 吨/公顷 | 2026-9 |
| 2015/2016 | 0.41 | 吨/公顷 | 2026-9 |
| 2014/2015 | 0.582 | 吨/公顷 | 2026-9 |
| 2013/2014 | 0.595 | 吨/公顷 | 2026-9 |
| 2012/2013 | 0.538 | 吨/公顷 | 2026-9 |
| 2011/2012 | 0.537 | 吨/公顷 | 2026-9 |
| 2010/2011 | 0.433 | 吨/公顷 | 2026-9 |
| 2009/2010 | 0.546 | 吨/公顷 | 2026-9 |
| 2008/2009 | 0.316 | 吨/公顷 | 2026-9 |
| 2007/2008 | 0.3 | 吨/公顷 | 2026-9 |
| 2006/2007 | 0.388 | 吨/公顷 | 2026-9 |
| 2005/2006 | 0.506 | 吨/公顷 | 2026-9 |
| 2004/2005 | 0.521 | 吨/公顷 | 2026-9 |
| 2003/2004 | 0.415 | 吨/公顷 | 2026-9 |
| 2002/2003 | 0.581 | 吨/公顷 | 2026-9 |
| 2001/2002 | 0.656 | 吨/公顷 | 2026-9 |
| 2000/2001 | 0.513 | 吨/公顷 | 2026-9 |
| 1999/2000 | 0.731 | 吨/公顷 | 2026-9 |
| 1998/1999 | 0.709 | 吨/公顷 | 2026-9 |
| 1997/1998 | 0.734 | 吨/公顷 | 2026-9 |
| 1996/1997 | 0.667 | 吨/公顷 | 2026-9 |
| 1995/1996 | 0.598 | 吨/公顷 | 2026-9 |
| 1994/1995 | 0.492 | 吨/公顷 | 2026-9 |
| 1993/1994 | 0.653 | 吨/公顷 | 2026-9 |
| 1992/1993 | 0.589 | 吨/公顷 | 2026-9 |
| 1991/1992 | 0.684 | 吨/公顷 | 2026-9 |
| 1990/1991 | 0.688 | 吨/公顷 | 2026-9 |
| 1989/1990 | 0.617 | 吨/公顷 | 2026-9 |
| 1988/1989 | 0.709 | 吨/公顷 | 2026-9 |
| 1987/1988 | 0.75 | 吨/公顷 | 2026-9 |
| 1986/1987 | 0.774 | 吨/公顷 | 2026-9 |
| 1985/1986 | 0.719 | 吨/公顷 | 2026-9 |
| 1984/1985 | 0.822 | 吨/公顷 | 2026-9 |
| 1983/1984 | 0.581 | 吨/公顷 | 2026-9 |
| 1982/1983 | 0.58 | 吨/公顷 | 2026-9 |
| 1981/1982 | 0.608 | 吨/公顷 | 2026-9 |
| 1980/1981 | 0.603 | 吨/公顷 | 2026-9 |
| 1979/1980 | 0.65 | 吨/公顷 | 2026-9 |
| 1978/1979 | 0.608 | 吨/公顷 | 2026-9 |
| 1977/1978 | 0.659 | 吨/公顷 | 2026-9 |
| 1976/1977 | 0.662 | 吨/公顷 | 2026-9 |
| 1975/1976 | 0.546 | 吨/公顷 | 2026-9 |
| 1974/1975 | 0.567 | 吨/公顷 | 2026-9 |
| 1973/1974 | 0.535 | 吨/公顷 | 2026-9 |
| 1972/1973 | 0.526 | 吨/公顷 | 2026-9 |
| 1971/1972 | 0.549 | 吨/公顷 | 2026-9 |
| 1970/1971 | 0.528 | 吨/公顷 | 2026-9 |
| 1969/1970 | 0.788 | 吨/公顷 | 2026-9 |