| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 2026/2027 | 3.488 | 吨/公顷 | 2026-9 |
| 2025/2026 | 3.48 | 吨/公顷 | 2026-9 |
| 2024/2025 | 3.487 | 吨/公顷 | 2026-9 |
| 2023/2024 | 3.335 | 吨/公顷 | 2026-9 |
| 2022/2023 | 3.226 | 吨/公顷 | 2026-9 |
| 2021/2022 | 2.769 | 吨/公顷 | 2026-9 |
| 2020/2021 | 3.353 | 吨/公顷 | 2026-9 |
| 2019/2020 | 3.454 | 吨/公顷 | 2026-9 |
| 2018/2019 | 3.266 | 吨/公顷 | 2026-9 |
| 2017/2018 | 3.526 | 吨/公顷 | 2026-9 |
| 2016/2017 | 3.332 | 吨/公顷 | 2026-9 |
| 2015/2016 | 3.059 | 吨/公顷 | 2026-9 |
| 2014/2015 | 3.17 | 吨/公顷 | 2026-9 |
| 2013/2014 | 3.656 | 吨/公顷 | 2026-9 |
| 2012/2013 | 3.117 | 吨/公顷 | 2026-9 |
| 2011/2012 | 2.094 | 吨/公顷 | 2026-9 |
| 2010/2011 | 2.744 | 吨/公顷 | 2026-9 |
| 2009/2010 | 1.627 | 吨/公顷 | 2026-9 |
| 2008/2009 | 3.36 | 吨/公顷 | 2026-9 |
| 2007/2008 | 2.76 | 吨/公顷 | 2026-9 |
| 2006/2007 | 2.541 | 吨/公顷 | 2026-9 |
| 2005/2006 | 2.283 | 吨/公顷 | 2026-9 |
| 2004/2005 | 1.946 | 吨/公顷 | 2026-9 |
| 2003/2004 | 2.439 | 吨/公顷 | 2026-9 |
| 2002/2003 | 1.892 | 吨/公顷 | 2026-9 |
| 2001/2002 | 2.644 | 吨/公顷 | 2026-9 |
| 2000/2001 | 2.129 | 吨/公顷 | 2026-9 |
| 1999/2000 | 2.237 | 吨/公顷 | 2026-9 |
| 1998/1999 | 2.136 | 吨/公顷 | 2026-9 |
| 1997/1998 | 1.721 | 吨/公顷 | 2026-9 |
| 1996/1997 | 1.92 | 吨/公顷 | 2026-9 |
| 1995/1996 | 1.625 | 吨/公顷 | 2026-9 |
| 1994/1995 | 1.655 | 吨/公顷 | 2026-9 |
| 1993/1994 | 1.655 | 吨/公顷 | 2026-9 |
| 1992/1993 | 1.564 | 吨/公顷 | 2026-9 |
| 1991/1992 | 1.788 | 吨/公顷 | 2026-9 |
| 1990/1991 | 1.15 | 吨/公顷 | 2026-9 |
| 1989/1990 | 1.162 | 吨/公顷 | 2026-9 |
| 1988/1989 | 1.176 | 吨/公顷 | 2026-9 |
| 1987/1988 | 1.18 | 吨/公顷 | 2026-9 |
| 1986/1987 | 0.98 | 吨/公顷 | 2026-9 |
| 1985/1986 | 0.861 | 吨/公顷 | 2026-9 |
| 1984/1985 | 0.661 | 吨/公顷 | 2026-9 |
| 1983/1984 | 1.154 | 吨/公顷 | 2026-9 |
| 1982/1983 | 1.173 | 吨/公顷 | 2026-9 |
| 1981/1982 | 1.023 | 吨/公顷 | 2026-9 |
| 1980/1981 | 0.892 | 吨/公顷 | 2026-9 |
| 1979/1980 | 1.269 | 吨/公顷 | 2026-9 |
| 1978/1979 | 1.26 | 吨/公顷 | 2026-9 |
| 1977/1978 | 1.3 | 吨/公顷 | 2026-9 |
| 1976/1977 | 1.553 | 吨/公顷 | 2026-9 |
| 1975/1976 | 1.69 | 吨/公顷 | 2026-9 |
| 1974/1975 | 0.636 | 吨/公顷 | 2026-9 |
| 1973/1974 | 0.741 | 吨/公顷 | 2026-9 |
| 1972/1973 | 0.788 | 吨/公顷 | 2026-9 |
| 1971/1972 | 0.934 | 吨/公顷 | 2026-9 |
| 1970/1971 | 0.831 | 吨/公顷 | 2026-9 |
| 1969/1970 | 0.698 | 吨/公顷 | 2026-9 |
| 1968/1969 | 0.553 | 吨/公顷 | 2026-9 |
| 1967/1968 | 0.896 | 吨/公顷 | 2026-9 |
| 1966/1967 | 0.782 | 吨/公顷 | 2026-9 |
| 1965/1966 | 0.958 | 吨/公顷 | 2026-9 |
| 1964/1965 | 0.988 | 吨/公顷 | 2026-9 |
| 1963/1964 | 0.8 | 吨/公顷 | 2026-9 |
| 1962/1963 | 1.044 | 吨/公顷 | 2026-9 |
| 1961/1962 | 1.088 | 吨/公顷 | 2026-9 |
| 1960/1961 | 1.088 | 吨/公顷 | 2026-9 |