| 年度 | 数值 | 单位 | 发布日期 |
| 2026/2027 | 4.094 | 吨/公顷 | 2026-9 |
| 2025/2026 | 4.366 | 吨/公顷 | 2026-9 |
| 2024/2025 | 3.967 | 吨/公顷 | 2026-9 |
| 2023/2024 | 4.092 | 吨/公顷 | 2026-9 |
| 2022/2023 | 4.109 | 吨/公顷 | 2026-9 |
| 2021/2022 | 4.109 | 吨/公顷 | 2026-9 |
| 2020/2021 | 4.117 | 吨/公顷 | 2026-9 |
| 2019/2020 | 3.655 | 吨/公顷 | 2026-9 |
| 2018/2019 | 3.382 | 吨/公顷 | 2026-9 |
| 2017/2018 | 3.885 | 吨/公顷 | 2026-9 |
| 2016/2017 | 3.69 | 吨/公顷 | 2026-9 |
| 2015/2016 | 3.799 | 吨/公顷 | 2026-9 |
| 2014/2015 | 4.137 | 吨/公顷 | 2026-9 |
| 2013/2014 | 3.844 | 吨/公顷 | 2026-9 |
| 2012/2013 | 3.742 | 吨/公顷 | 2026-9 |
| 2011/2012 | 3.507 | 吨/公顷 | 2026-9 |
| 2010/2011 | 3.638 | 吨/公顷 | 2026-9 |
| 2009/2010 | 3.713 | 吨/公顷 | 2026-9 |
| 2008/2009 | 3.469 | 吨/公顷 | 2026-9 |
| 2007/2008 | 3.413 | 吨/公顷 | 2026-9 |
| 2006/2007 | 3.007 | 吨/公顷 | 2026-9 |
| 2005/2006 | 3.519 | 吨/公顷 | 2026-9 |
| 2004/2005 | 3.808 | 吨/公顷 | 2026-9 |
| 2003/2004 | 3.114 | 吨/公顷 | 2026-9 |
| 2002/2003 | 3.55 | 吨/公顷 | 2026-9 |
| 2001/2002 | 3.537 | 吨/公顷 | 2026-9 |
| 2000/2001 | 3.103 | 吨/公顷 | 2026-9 |
| 1999/2000 | 3.503 | 吨/公顷 | 2026-9 |
| 1998/1999 | 3.583 | 吨/公顷 | 2026-9 |
| 1997/1998 | 3.452 | 吨/公顷 | 2026-9 |
| 1996/1997 | 3.367 | 吨/公顷 | 2026-9 |
| 1995/1996 | 3.254 | 吨/公顷 | 2026-9 |
| 1994/1995 | 2.8 | 吨/公顷 | 2026-9 |
| 1993/1994 | 2.997 | 吨/公顷 | 2026-9 |
| 1992/1993 | 2.662 | 吨/公顷 | 2026-9 |
| 1991/1992 | 3.23 | 吨/公顷 | 2026-9 |
| 1990/1991 | 3.172 | 吨/公顷 | 2026-9 |
| 1989/1990 | 3.139 | 吨/公顷 | 2026-9 |
| 1988/1989 | 2.806 | 吨/公顷 | 2026-9 |
| 1987/1988 | 3.076 | 吨/公顷 | 2026-9 |
| 1986/1987 | 2.894 | 吨/公顷 | 2026-9 |
| 1985/1986 | 2.934 | 吨/公顷 | 2026-9 |
| 1984/1985 | 2.927 | 吨/公顷 | 2026-9 |
| 1983/1984 | 2.486 | 吨/公顷 | 2026-9 |
| 1982/1983 | 2.711 | 吨/公顷 | 2026-9 |
| 1981/1982 | 2.595 | 吨/公顷 | 2026-9 |
| 1980/1981 | 2.578 | 吨/公顷 | 2026-9 |
| 1979/1980 | 2.482 | 吨/公顷 | 2026-9 |
| 1978/1979 | 2.62 | 吨/公顷 | 2026-9 |
| 1977/1978 | 2.622 | 吨/公顷 | 2026-9 |
| 1976/1977 | 2.515 | 吨/公顷 | 2026-9 |
| 1975/1976 | 2.634 | 吨/公顷 | 2026-9 |
| 1974/1975 | 2.767 | 吨/公顷 | 2026-9 |
| 1973/1974 | 2.703 | 吨/公顷 | 2026-9 |
| 1972/1973 | 2.676 | 吨/公顷 | 2026-9 |
| 1971/1972 | 2.703 | 吨/公顷 | 2026-9 |
| 1970/1971 | 2.374 | 吨/公顷 | 2026-9 |
| 1969/1970 | 2.538 | 吨/公顷 | 2026-9 |
| 1968/1969 | 2.589 | 吨/公顷 | 2026-9 |
| 1967/1968 | 2.445 | 吨/公顷 | 2026-9 |
| 1966/1967 | 2.278 | 吨/公顷 | 2026-9 |
| 1965/1966 | 2.373 | 吨/公顷 | 2026-9 |
| 1964/1965 | 2.371 | 吨/公顷 | 2026-9 |
| 1963/1964 | 2.425 | 吨/公顷 | 2026-9 |
| 1962/1963 | 2.335 | 吨/公顷 | 2026-9 |
| 1961/1962 | 2.105 | 吨/公顷 | 2026-9 |
| 1960/1961 | 2.223 | 吨/公顷 | 2026-9 |