| 年度 | 数值 | 单位 | 发布日期 |
| 2026/2027 | 2.679 | 吨/公顷 | 2026-9 |
| 2025/2026 | 1.591 | 吨/公顷 | 2026-9 |
| 2024/2025 | 1.118 | 吨/公顷 | 2026-9 |
| 2023/2024 | 1.708 | 吨/公顷 | 2026-9 |
| 2022/2023 | 1.112 | 吨/公顷 | 2026-9 |
| 2021/2022 | 2.633 | 吨/公顷 | 2026-9 |
| 2020/2021 | 0.901 | 吨/公顷 | 2026-9 |
| 2019/2020 | 1.606 | 吨/公顷 | 2026-9 |
| 2018/2019 | 2.542 | 吨/公顷 | 2026-9 |
| 2017/2018 | 2.095 | 吨/公顷 | 2026-9 |
| 2016/2017 | 1.131 | 吨/公顷 | 2026-9 |
| 2015/2016 | 2.466 | 吨/公顷 | 2026-9 |
| 2014/2015 | 1.713 | 吨/公顷 | 2026-9 |
| 2013/2014 | 2.164 | 吨/公顷 | 2026-9 |
| 2012/2013 | 1.234 | 吨/公顷 | 2026-9 |
| 2011/2012 | 1.949 | 吨/公顷 | 2026-9 |
| 2010/2011 | 1.71 | 吨/公顷 | 2026-9 |
| 2009/2010 | 2.139 | 吨/公顷 | 2026-9 |
| 2008/2009 | 1.319 | 吨/公顷 | 2026-9 |
| 2007/2008 | 0.615 | 吨/公顷 | 2026-9 |
| 2006/2007 | 2.036 | 吨/公顷 | 2026-9 |
| 2005/2006 | 1.026 | 吨/公顷 | 2026-9 |
| 2004/2005 | 1.808 | 吨/公顷 | 2026-9 |
| 2003/2004 | 1.722 | 吨/公顷 | 2026-9 |
| 2002/2003 | 1.28 | 吨/公顷 | 2026-9 |
| 2001/2002 | 1.228 | 吨/公顷 | 2026-9 |
| 2000/2001 | 0.476 | 吨/公顷 | 2026-9 |
| 1999/2000 | 0.8 | 吨/公顷 | 2026-9 |
| 1998/1999 | 1.418 | 吨/公顷 | 2026-9 |
| 1997/1998 | 0.929 | 吨/公顷 | 2026-9 |
| 1996/1997 | 1.841 | 吨/公顷 | 2026-9 |
| 1995/1996 | 0.647 | 吨/公顷 | 2026-9 |
| 1994/1995 | 1.811 | 吨/公顷 | 2026-9 |
| 1993/1994 | 0.681 | 吨/公顷 | 2026-9 |
| 1992/1993 | 0.701 | 吨/公顷 | 2026-9 |
| 1991/1992 | 1.869 | 吨/公顷 | 2026-9 |
| 1990/1991 | 1.329 | 吨/公顷 | 2026-9 |
| 1989/1990 | 1.493 | 吨/公顷 | 2026-9 |
| 1988/1989 | 1.735 | 吨/公顷 | 2026-9 |
| 1987/1988 | 1.061 | 吨/公顷 | 2026-9 |
| 1986/1987 | 1.711 | 吨/公顷 | 2026-9 |
| 1985/1986 | 1.082 | 吨/公顷 | 2026-9 |
| 1984/1985 | 1.072 | 吨/公顷 | 2026-9 |
| 1983/1984 | 0.998 | 吨/公顷 | 2026-9 |
| 1982/1983 | 1.295 | 吨/公顷 | 2026-9 |
| 1981/1982 | 0.542 | 吨/公顷 | 2026-9 |
| 1980/1981 | 1.057 | 吨/公顷 | 2026-9 |
| 1979/1980 | 1.085 | 吨/公顷 | 2026-9 |
| 1978/1979 | 1.07 | 吨/公顷 | 2026-9 |
| 1977/1978 | 0.668 | 吨/公顷 | 2026-9 |
| 1976/1977 | 1.139 | 吨/公顷 | 2026-9 |
| 1975/1976 | 0.931 | 吨/公顷 | 2026-9 |
| 1974/1975 | 0.967 | 吨/公顷 | 2026-9 |
| 1973/1974 | 0.772 | 吨/公顷 | 2026-9 |
| 1972/1973 | 1.05 | 吨/公顷 | 2026-9 |
| 1971/1972 | 1.161 | 吨/公顷 | 2026-9 |
| 1970/1971 | 0.959 | 吨/公顷 | 2026-9 |
| 1969/1970 | 0.904 | 吨/公顷 | 2026-9 |
| 1968/1969 | 1.439 | 吨/公顷 | 2026-9 |
| 1967/1968 | 0.724 | 吨/公顷 | 2026-9 |
| 1966/1967 | 0.702 | 吨/公顷 | 2026-9 |
| 1965/1966 | 0.794 | 吨/公顷 | 2026-9 |
| 1964/1965 | 0.783 | 吨/公顷 | 2026-9 |
| 1963/1964 | 0.724 | 吨/公顷 | 2026-9 |
| 1962/1963 | 0.856 | 吨/公顷 | 2026-9 |
| 1961/1962 | 0.38 | 吨/公顷 | 2026-9 |
| 1960/1961 | 0.557 | 吨/公顷 | 2026-9 |