| 年度 | 数值 | 单位 | 发布日期 |
| 2026/2027 | 4.284 | 吨/公顷 | 2026-9 |
| 2025/2026 | 4.623 | 吨/公顷 | 2026-9 |
| 2024/2025 | 4.175 | 吨/公顷 | 2026-9 |
| 2023/2024 | 3.974 | 吨/公顷 | 2026-9 |
| 2022/2023 | 3.61 | 吨/公顷 | 2026-9 |
| 2021/2022 | 3.557 | 吨/公顷 | 2026-9 |
| 2020/2021 | 4.595 | 吨/公顷 | 2026-9 |
| 2019/2020 | 4.847 | 吨/公顷 | 2026-9 |
| 2018/2019 | 4.729 | 吨/公顷 | 2026-9 |
| 2017/2018 | 4.299 | 吨/公顷 | 2026-9 |
| 2016/2017 | 4.36 | 吨/公顷 | 2026-9 |
| 2015/2016 | 4.416 | 吨/公顷 | 2026-9 |
| 2014/2015 | 4.32 | 吨/公顷 | 2026-9 |
| 2013/2014 | 4.34 | 吨/公顷 | 2026-9 |
| 2012/2013 | 4.242 | 吨/公顷 | 2026-9 |
| 2011/2012 | 4.404 | 吨/公顷 | 2026-9 |
| 2010/2011 | 3.987 | 吨/公顷 | 2026-9 |
| 2009/2010 | 4.449 | 吨/公顷 | 2026-9 |
| 2008/2009 | 4.324 | 吨/公顷 | 2026-9 |
| 2007/2008 | 4.304 | 吨/公顷 | 2026-9 |
| 2006/2007 | 3.728 | 吨/公顷 | 2026-9 |
| 2005/2006 | 3.86 | 吨/公顷 | 2026-9 |
| 2004/2005 | 3.679 | 吨/公顷 | 2026-9 |
| 2003/2004 | 3.449 | 吨/公顷 | 2026-9 |
| 2002/2003 | 3.754 | 吨/公顷 | 2026-9 |
| 2001/2002 | 3.641 | 吨/公顷 | 2026-9 |
| 2000/2001 | 3.705 | 吨/公顷 | 2026-9 |
| 1999/2000 | 3.976 | 吨/公顷 | 2026-9 |
| 1998/1999 | 3.828 | 吨/公顷 | 2026-9 |
| 1997/1998 | 3.545 | 吨/公顷 | 2026-9 |
| 1996/1997 | 3.603 | 吨/公顷 | 2026-9 |
| 1995/1996 | 3.583 | 吨/公顷 | 2026-9 |
| 1994/1995 | 3.527 | 吨/公顷 | 2026-9 |
| 1993/1994 | 3.394 | 吨/公顷 | 2026-9 |
| 1992/1993 | 3.443 | 吨/公顷 | 2026-9 |
| 1991/1992 | 3.34 | 吨/公顷 | 2026-9 |
| 1990/1991 | 3.484 | 吨/公顷 | 2026-9 |
| 1989/1990 | 3.472 | 吨/公顷 | 2026-9 |
| 1988/1989 | 3.404 | 吨/公顷 | 2026-9 |
| 1987/1988 | 3.424 | 吨/公顷 | 2026-9 |
| 1986/1987 | 3.522 | 吨/公顷 | 2026-9 |
| 1985/1986 | 3.517 | 吨/公顷 | 2026-9 |
| 1984/1985 | 3.372 | 吨/公顷 | 2026-9 |
| 1983/1984 | 3.192 | 吨/公顷 | 2026-9 |
| 1982/1983 | 3.522 | 吨/公顷 | 2026-9 |
| 1981/1982 | 2.91 | 吨/公顷 | 2026-9 |
| 1980/1981 | 3.134 | 吨/公顷 | 2026-9 |
| 1979/1980 | 2.419 | 吨/公顷 | 2026-9 |
| 1978/1979 | 2.212 | 吨/公顷 | 2026-9 |
| 1977/1978 | 2.517 | 吨/公顷 | 2026-9 |
| 1976/1977 | 1.79 | 吨/公顷 | 2026-9 |
| 1975/1976 | 1.775 | 吨/公顷 | 2026-9 |
| 1974/1975 | 2.351 | 吨/公顷 | 2026-9 |
| 1973/1974 | 1.952 | 吨/公顷 | 2026-9 |
| 1972/1973 | 2.053 | 吨/公顷 | 2026-9 |
| 1971/1972 | 2.017 | 吨/公顷 | 2026-9 |
| 1970/1971 | 2.25 | 吨/公顷 | 2026-9 |
| 1969/1970 | 2.207 | 吨/公顷 | 2026-9 |
| 1968/1969 | 2.041 | 吨/公顷 | 2026-9 |
| 1967/1968 | 1.808 | 吨/公顷 | 2026-9 |
| 1966/1967 | 1.559 | 吨/公顷 | 2026-9 |
| 1965/1966 | 1.505 | 吨/公顷 | 2026-9 |
| 1964/1965 | 1.697 | 吨/公顷 | 2026-9 |
| 1963/1964 | 1.671 | 吨/公顷 | 2026-9 |
| 1962/1963 | 1.657 | 吨/公顷 | 2026-9 |
| 1961/1962 | 1.58 | 吨/公顷 | 2026-9 |
| 1960/1961 | 1.59 | 吨/公顷 | 2026-9 |