| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 2026/2027 | 0.49 | 吨/公顷 | 2026-9 |
| 2025/2026 | 0.435 | 吨/公顷 | 2026-9 |
| 2024/2025 | 0.575 | 吨/公顷 | 2026-9 |
| 2023/2024 | 0.528 | 吨/公顷 | 2026-9 |
| 2022/2023 | 0.349 | 吨/公顷 | 2026-9 |
| 2021/2022 | 0.561 | 吨/公顷 | 2026-9 |
| 2020/2021 | 0.509 | 吨/公顷 | 2026-9 |
| 2019/2020 | 0.52 | 吨/公顷 | 2026-9 |
| 2018/2019 | 0.495 | 吨/公顷 | 2026-9 |
| 2017/2018 | 0.562 | 吨/公顷 | 2026-9 |
| 2016/2017 | 0.536 | 吨/公顷 | 2026-9 |
| 2015/2016 | 0.506 | 吨/公顷 | 2026-9 |
| 2014/2015 | 0.544 | 吨/公顷 | 2026-9 |
| 2013/2014 | 0.536 | 吨/公顷 | 2026-9 |
| 2012/2013 | 0.47 | 吨/公顷 | 2026-9 |
| 2011/2012 | 0.509 | 吨/公顷 | 2026-9 |
| 2010/2011 | 0.515 | 吨/公顷 | 2026-9 |
| 2009/2010 | 0.5 | 吨/公顷 | 2026-9 |
| 2008/2009 | 0.521 | 吨/公顷 | 2026-9 |
| 2007/2008 | 0.447 | 吨/公顷 | 2026-9 |
| 2006/2007 | 0.487 | 吨/公顷 | 2026-9 |
| 2005/2006 | 0.545 | 吨/公顷 | 2026-9 |
| 2004/2005 | 0.544 | 吨/公顷 | 2026-9 |
| 2003/2004 | 0.628 | 吨/公顷 | 2026-9 |
| 2002/2003 | 0.557 | 吨/公顷 | 2026-9 |
| 2001/2002 | 0.632 | 吨/公顷 | 2026-9 |
| 2000/2001 | 0.642 | 吨/公顷 | 2026-9 |
| 1999/2000 | 0.664 | 吨/公顷 | 2026-9 |
| 1998/1999 | 0.698 | 吨/公顷 | 2026-9 |
| 1997/1998 | 0.738 | 吨/公顷 | 2026-9 |
| 1996/1997 | 0.824 | 吨/公顷 | 2026-9 |
| 1995/1996 | 0.914 | 吨/公顷 | 2026-9 |
| 1994/1995 | 0.975 | 吨/公顷 | 2026-9 |
| 1993/1994 | 0.984 | 吨/公顷 | 2026-9 |
| 1992/1993 | 1.065 | 吨/公顷 | 2026-9 |
| 1991/1992 | 0.907 | 吨/公顷 | 2026-9 |
| 1990/1991 | 1.026 | 吨/公顷 | 2026-9 |
| 1989/1990 | 1.082 | 吨/公顷 | 2026-9 |
| 1988/1989 | 1.169 | 吨/公顷 | 2026-9 |
| 1987/1988 | 1.096 | 吨/公顷 | 2026-9 |
| 1986/1987 | 1.062 | 吨/公顷 | 2026-9 |
| 1985/1986 | 0.957 | 吨/公顷 | 2026-9 |
| 1984/1985 | 0.894 | 吨/公顷 | 2026-9 |
| 1983/1984 | 1.029 | 吨/公顷 | 2026-9 |
| 1982/1983 | 1.151 | 吨/公顷 | 2026-9 |
| 1981/1982 | 0.962 | 吨/公顷 | 2026-9 |
| 1980/1981 | 0.824 | 吨/公顷 | 2026-9 |
| 1979/1980 | 0.798 | 吨/公顷 | 2026-9 |
| 1978/1979 | 0.851 | 吨/公顷 | 2026-9 |
| 1977/1978 | 0.86 | 吨/公顷 | 2026-9 |
| 1976/1977 | 0.86 | 吨/公顷 | 2026-9 |
| 1975/1976 | 0.851 | 吨/公顷 | 2026-9 |
| 1974/1975 | 0.667 | 吨/公顷 | 2026-9 |
| 1973/1974 | 0.543 | 吨/公顷 | 2026-9 |
| 1972/1973 | 0.636 | 吨/公顷 | 2026-9 |
| 1971/1972 | 0.641 | 吨/公顷 | 2026-9 |
| 1970/1971 | 0.606 | 吨/公顷 | 2026-9 |
| 1969/1970 | 0.493 | 吨/公顷 | 2026-9 |