| 年度 | 数值 | 单位 | 发布日期 |
| 2026/2027 | 9.773 | 吨/公顷 | 2026-9 |
| 2025/2026 | 9.646 | 吨/公顷 | 2026-9 |
| 2024/2025 | 10.109 | 吨/公顷 | 2026-9 |
| 2023/2024 | 9.561 | 吨/公顷 | 2026-9 |
| 2022/2023 | 9.372 | 吨/公顷 | 2026-9 |
| 2021/2022 | 9.614 | 吨/公顷 | 2026-9 |
| 2020/2021 | 9.87 | 吨/公顷 | 2026-9 |
| 2019/2020 | 8.844 | 吨/公顷 | 2026-9 |
| 2018/2019 | 9.049 | 吨/公顷 | 2026-9 |
| 2017/2018 | 9.878 | 吨/公顷 | 2026-9 |
| 2016/2017 | 9.18 | 吨/公顷 | 2026-9 |
| 2015/2016 | 8.625 | 吨/公顷 | 2026-9 |
| 2014/2015 | 8.625 | 吨/公顷 | 2026-9 |
| 2013/2014 | 9.143 | 吨/公顷 | 2026-9 |
| 2012/2013 | 8.891 | 吨/公顷 | 2026-9 |
| 2011/2012 | 7.226 | 吨/公顷 | 2026-9 |
| 2010/2011 | 8.091 | 吨/公顷 | 2026-9 |
| 2009/2010 | 7.482 | 吨/公顷 | 2026-9 |
| 2008/2009 | 8.167 | 吨/公顷 | 2026-9 |
| 2007/2008 | 8.39 | 吨/公顷 | 2026-9 |
| 2006/2007 | 6.895 | 吨/公顷 | 2026-9 |
| 2005/2006 | 8.18 | 吨/公顷 | 2026-9 |
| 2004/2005 | 6.564 | 吨/公顷 | 2026-9 |
| 2003/2004 | 7.419 | 吨/公顷 | 2026-9 |
| 2002/2003 | 7.191 | 吨/公顷 | 2026-9 |
| 2001/2002 | 7.429 | 吨/公顷 | 2026-9 |
| 2000/2001 | 6.151 | 吨/公顷 | 2026-9 |
| 1999/2000 | 6.038 | 吨/公顷 | 2026-9 |
| 1998/1999 | 5 | 吨/公顷 | 2026-9 |
| 1997/1998 | 5.463 | 吨/公顷 | 2026-9 |
| 1996/1997 | 5.517 | 吨/公顷 | 2026-9 |
| 1995/1996 | 5.1 | 吨/公顷 | 2026-9 |
| 1994/1995 | 4.712 | 吨/公顷 | 2026-9 |
| 1993/1994 | 5.378 | 吨/公顷 | 2026-9 |
| 1992/1993 | 5.342 | 吨/公顷 | 2026-9 |
| 1991/1992 | 5.026 | 吨/公顷 | 2026-9 |
| 1990/1991 | 4.763 | 吨/公顷 | 2026-9 |
| 1989/1990 | 3.553 | 吨/公顷 | 2026-9 |
| 1988/1989 | 4.302 | 吨/公顷 | 2026-9 |
| 1987/1988 | 4.048 | 吨/公顷 | 2026-9 |
| 1986/1987 | 4.165 | 吨/公顷 | 2026-9 |
| 1985/1986 | 4.448 | 吨/公顷 | 2026-9 |
| 1984/1985 | 4.551 | 吨/公顷 | 2026-9 |
| 1983/1984 | 4.889 | 吨/公顷 | 2026-9 |
| 1982/1983 | 4.239 | 吨/公顷 | 2026-9 |
| 1981/1982 | 4.056 | 吨/公顷 | 2026-9 |
| 1980/1981 | 4.025 | 吨/公顷 | 2026-9 |
| 1979/1980 | 3.558 | 吨/公顷 | 2026-9 |
| 1978/1979 | 3.391 | 吨/公顷 | 2026-9 |
| 1977/1978 | 3.615 | 吨/公顷 | 2026-9 |
| 1976/1977 | 3.688 | 吨/公顷 | 2026-9 |
| 1975/1976 | 3.731 | 吨/公顷 | 2026-9 |
| 1974/1975 | 3.103 | 吨/公顷 | 2026-9 |
| 1973/1974 | 3.209 | 吨/公顷 | 2026-9 |
| 1972/1973 | 3.482 | 吨/公顷 | 2026-9 |
| 1971/1972 | 3.589 | 吨/公顷 | 2026-9 |
| 1970/1971 | 3.327 | 吨/公顷 | 2026-9 |
| 1969/1970 | 2.657 | 吨/公顷 | 2026-9 |
| 1968/1969 | 3.515 | 吨/公顷 | 2026-9 |
| 1967/1968 | 3.48 | 吨/公顷 | 2026-9 |
| 1966/1967 | 3.742 | 吨/公顷 | 2026-9 |
| 1965/1966 | 3.605 | 吨/公顷 | 2026-9 |
| 1964/1965 | 3.378 | 吨/公顷 | 2026-9 |
| 1963/1964 | 3.301 | 吨/公顷 | 2026-9 |
| 1962/1963 | 2.707 | 吨/公顷 | 2026-9 |
| 1961/1962 | 2.84 | 吨/公顷 | 2026-9 |
| 1960/1961 | 3.329 | 吨/公顷 | 2026-9 |