| 年度 | 数值 | 单位 | 发布日期 |
| 2026/2027 | 5.333 | 吨/公顷 | 2026-9 |
| 2025/2026 | 5.645 | 吨/公顷 | 2026-9 |
| 2024/2025 | 5.658 | 吨/公顷 | 2026-9 |
| 2023/2024 | 6.207 | 吨/公顷 | 2026-9 |
| 2022/2023 | 6.059 | 吨/公顷 | 2026-9 |
| 2021/2022 | 5.993 | 吨/公顷 | 2026-9 |
| 2020/2021 | 5.324 | 吨/公顷 | 2026-9 |
| 2019/2020 | 5.526 | 吨/公顷 | 2026-9 |
| 2018/2019 | 5.44 | 吨/公顷 | 2026-9 |
| 2017/2018 | 5.301 | 吨/公顷 | 2026-9 |
| 2016/2017 | 5.336 | 吨/公顷 | 2026-9 |
| 2015/2016 | 4.526 | 吨/公顷 | 2026-9 |
| 2014/2015 | 5.191 | 吨/公顷 | 2026-9 |
| 2013/2014 | 5.295 | 吨/公顷 | 2026-9 |
| 2012/2013 | 5.655 | 吨/公顷 | 2026-9 |
| 2011/2012 | 5.48 | 吨/公顷 | 2026-9 |
| 2010/2011 | 5.415 | 吨/公顷 | 2026-9 |
| 2009/2010 | 4.971 | 吨/公顷 | 2026-9 |
| 2008/2009 | 5.083 | 吨/公顷 | 2026-9 |
| 2007/2008 | 4.977 | 吨/公顷 | 2026-9 |
| 2006/2007 | 5.684 | 吨/公顷 | 2026-9 |
| 2005/2006 | 5.491 | 吨/公顷 | 2026-9 |
| 2004/2005 | 4.745 | 吨/公顷 | 2026-9 |
| 2003/2004 | 4.5 | 吨/公顷 | 2026-9 |
| 2002/2003 | 5.127 | 吨/公顷 | 2026-9 |
| 2001/2002 | 4.774 | 吨/公顷 | 2026-9 |
| 2000/2001 | 4.928 | 吨/公顷 | 2026-9 |
| 1999/2000 | 4.766 | 吨/公顷 | 2026-9 |
| 1998/1999 | 4.212 | 吨/公顷 | 2026-9 |
| 1997/1998 | 4.543 | 吨/公顷 | 2026-9 |
| 1996/1997 | 3.841 | 吨/公顷 | 2026-9 |
| 1995/1996 | 3.733 | 吨/公顷 | 2026-9 |
| 1994/1995 | 4.302 | 吨/公顷 | 2026-9 |
| 1993/1994 | 4.08 | 吨/公顷 | 2026-9 |
| 1992/1993 | 3.953 | 吨/公顷 | 2026-9 |
| 1991/1992 | 4.127 | 吨/公顷 | 2026-9 |
| 1990/1991 | 4.212 | 吨/公顷 | 2026-9 |
| 1989/1990 | 4.211 | 吨/公顷 | 2026-9 |
| 1988/1989 | 4 | 吨/公顷 | 2026-9 |
| 1987/1988 | 4.111 | 吨/公顷 | 2026-9 |
| 1986/1987 | 4.186 | 吨/公顷 | 2026-9 |
| 1985/1986 | 4.191 | 吨/公顷 | 2026-9 |
| 1984/1985 | 4.421 | 吨/公顷 | 2026-9 |
| 1983/1984 | 3.81 | 吨/公顷 | 2026-9 |
| 1982/1983 | 4.421 | 吨/公顷 | 2026-9 |
| 1981/1982 | 3.588 | 吨/公顷 | 2026-9 |
| 1980/1981 | 3.581 | 吨/公顷 | 2026-9 |
| 1979/1980 | 3.677 | 吨/公顷 | 2026-9 |
| 1978/1979 | 3.092 | 吨/公顷 | 2026-9 |
| 1977/1978 | 2.968 | 吨/公顷 | 2026-9 |
| 1976/1977 | 3.785 | 吨/公顷 | 2026-9 |
| 1975/1976 | 3.616 | 吨/公顷 | 2026-9 |
| 1974/1975 | 3.038 | 吨/公顷 | 2026-9 |
| 1973/1974 | 2.778 | 吨/公顷 | 2026-9 |
| 1972/1973 | 2.5 | 吨/公顷 | 2026-9 |
| 1971/1972 | 2.897 | 吨/公顷 | 2026-9 |
| 1970/1971 | 2.815 | 吨/公顷 | 2026-9 |
| 1969/1970 | 2.446 | 吨/公顷 | 2026-9 |
| 1968/1969 | 2.525 | 吨/公顷 | 2026-9 |
| 1967/1968 | 2.744 | 吨/公顷 | 2026-9 |
| 1966/1967 | 2.217 | 吨/公顷 | 2026-9 |
| 1965/1966 | 2.465 | 吨/公顷 | 2026-9 |
| 1964/1965 | 2.206 | 吨/公顷 | 2026-9 |
| 1963/1964 | 2.079 | 吨/公顷 | 2026-9 |
| 1962/1963 | 1.945 | 吨/公顷 | 2026-9 |
| 1961/1962 | 1.675 | 吨/公顷 | 2026-9 |
| 1960/1961 | 1.417 | 吨/公顷 | 2026-9 |