| 年度 | 数值 | 单位 | 发布日期 |
| 2026/2027 | 3.412 | 吨/公顷 | 2026-9 |
| 2025/2026 | 4.555 | 吨/公顷 | 2026-9 |
| 2024/2025 | 3.851 | 吨/公顷 | 2026-9 |
| 2023/2024 | 3.261 | 吨/公顷 | 2026-9 |
| 2022/2023 | 2.58 | 吨/公顷 | 2026-9 |
| 2021/2022 | 4.332 | 吨/公顷 | 2026-9 |
| 2020/2021 | 4.595 | 吨/公顷 | 2026-9 |
| 2019/2020 | 4.584 | 吨/公顷 | 2026-9 |
| 2018/2019 | 4.527 | 吨/公顷 | 2026-9 |
| 2017/2018 | 4.504 | 吨/公顷 | 2026-9 |
| 2016/2017 | 4.891 | 吨/公顷 | 2026-9 |
| 2015/2016 | 4.771 | 吨/公顷 | 2026-9 |
| 2014/2015 | 4.243 | 吨/公顷 | 2026-9 |
| 2013/2014 | 3.74 | 吨/公顷 | 2026-9 |
| 2012/2013 | 3.114 | 吨/公顷 | 2026-9 |
| 2011/2012 | 3.39 | 吨/公顷 | 2026-9 |
| 2010/2011 | 4.512 | 吨/公顷 | 2026-9 |
| 2009/2010 | 4.353 | 吨/公顷 | 2026-9 |
| 2008/2009 | 4.085 | 吨/公顷 | 2026-9 |
| 2007/2008 | 4.597 | 吨/公顷 | 2026-9 |
| 2006/2007 | 3.52 | 吨/公顷 | 2026-9 |
| 2005/2006 | 4.298 | 吨/公顷 | 2026-9 |
| 2004/2005 | 4.369 | 吨/公顷 | 2026-9 |
| 2003/2004 | 3.31 | 吨/公顷 | 2026-9 |
| 2002/2003 | 3.178 | 吨/公顷 | 2026-9 |
| 2001/2002 | 3.761 | 吨/公顷 | 2026-9 |
| 2000/2001 | 3.822 | 吨/公顷 | 2026-9 |
| 1999/2000 | 4.372 | 吨/公顷 | 2026-9 |
| 1998/1999 | 4.226 | 吨/公顷 | 2026-9 |
| 1997/1998 | 4.342 | 吨/公顷 | 2026-9 |
| 1996/1997 | 4.226 | 吨/公顷 | 2026-9 |
| 1995/1996 | 3.488 | 吨/公顷 | 2026-9 |
| 1994/1995 | 4.564 | 吨/公顷 | 2026-9 |
| 1993/1994 | 3.761 | 吨/公顷 | 2026-9 |
| 1992/1993 | 4.558 | 吨/公顷 | 2026-9 |
| 1991/1992 | 3.72 | 吨/公顷 | 2026-9 |
| 1990/1991 | 3.96 | 吨/公顷 | 2026-9 |
| 1989/1990 | 3.479 | 吨/公顷 | 2026-9 |
| 1988/1989 | 4.003 | 吨/公顷 | 2026-9 |
| 1987/1988 | 4.356 | 吨/公顷 | 2026-9 |
| 1986/1987 | 4.251 | 吨/公顷 | 2026-9 |
| 1985/1986 | 4.19 | 吨/公顷 | 2026-9 |
| 1984/1985 | 3.267 | 吨/公顷 | 2026-9 |
| 1983/1984 | 3.06 | 吨/公顷 | 2026-9 |
| 1982/1983 | 3.708 | 吨/公顷 | 2026-9 |
| 1981/1982 | 4.019 | 吨/公顷 | 2026-9 |
| 1980/1981 | 2.906 | 吨/公顷 | 2026-9 |
| 1979/1980 | 3.928 | 吨/公顷 | 2026-9 |
| 1978/1979 | 3.423 | 吨/公顷 | 2026-9 |
| 1977/1978 | 3.553 | 吨/公顷 | 2026-9 |
| 1976/1977 | 3.084 | 吨/公顷 | 2026-9 |
| 1975/1976 | 3.074 | 吨/公顷 | 2026-9 |
| 1974/1975 | 2.831 | 吨/公顷 | 2026-9 |
| 1973/1974 | 3.691 | 吨/公顷 | 2026-9 |
| 1972/1973 | 3.807 | 吨/公顷 | 2026-9 |
| 1971/1972 | 3.375 | 吨/公顷 | 2026-9 |
| 1970/1971 | 3.16 | 吨/公顷 | 2026-9 |
| 1969/1970 | 3.41 | 吨/公顷 | 2026-9 |
| 1968/1969 | 3.305 | 吨/公顷 | 2026-9 |
| 1967/1968 | 3.164 | 吨/公顷 | 2026-9 |
| 1966/1967 | 3.503 | 吨/公顷 | 2026-9 |
| 1965/1966 | 3.241 | 吨/公顷 | 2026-9 |
| 1964/1965 | 2.618 | 吨/公顷 | 2026-9 |
| 1963/1964 | 2.757 | 吨/公顷 | 2026-9 |
| 1962/1963 | 2.768 | 吨/公顷 | 2026-9 |
| 1961/1962 | 2.744 | 吨/公顷 | 2026-9 |
| 1960/1961 | 2.494 | 吨/公顷 | 2026-9 |