| 年度 | 数值 | 单位 | 发布日期 |
| 2026/2027 | 2.818 | 吨/公顷 | 2026-9 |
| 2025/2026 | 2.899 | 吨/公顷 | 2026-9 |
| 2024/2025 | 2.612 | 吨/公顷 | 2026-9 |
| 2023/2024 | 2.098 | 吨/公顷 | 2026-9 |
| 2022/2023 | 3.108 | 吨/公顷 | 2026-9 |
| 2021/2022 | 2.847 | 吨/公顷 | 2026-9 |
| 2020/2021 | 2.525 | 吨/公顷 | 2026-9 |
| 2019/2020 | 1.468 | 吨/公顷 | 2026-9 |
| 2018/2019 | 1.692 | 吨/公顷 | 2026-9 |
| 2017/2018 | 1.918 | 吨/公顷 | 2026-9 |
| 2016/2017 | 2.61 | 吨/公顷 | 2026-9 |
| 2015/2016 | 1.974 | 吨/公顷 | 2026-9 |
| 2014/2015 | 1.917 | 吨/公顷 | 2026-9 |
| 2013/2014 | 2.006 | 吨/公顷 | 2026-9 |
| 2012/2013 | 1.761 | 吨/公顷 | 2026-9 |
| 2011/2012 | 2.151 | 吨/公顷 | 2026-9 |
| 2010/2011 | 2.03 | 吨/公顷 | 2026-9 |
| 2009/2010 | 1.573 | 吨/公顷 | 2026-9 |
| 2008/2009 | 1.583 | 吨/公顷 | 2026-9 |
| 2007/2008 | 1.079 | 吨/公顷 | 2026-9 |
| 2006/2007 | 0.917 | 吨/公顷 | 2026-9 |
| 2005/2006 | 2.021 | 吨/公顷 | 2026-9 |
| 2004/2005 | 1.635 | 吨/公顷 | 2026-9 |
| 2003/2004 | 2 | 吨/公顷 | 2026-9 |
| 2002/2003 | 0.915 | 吨/公顷 | 2026-9 |
| 2001/2002 | 2.096 | 吨/公顷 | 2026-9 |
| 2000/2001 | 1.821 | 吨/公顷 | 2026-9 |
| 1999/2000 | 2.035 | 吨/公顷 | 2026-9 |
| 1998/1999 | 1.86 | 吨/公顷 | 2026-9 |
| 1997/1998 | 1.842 | 吨/公顷 | 2026-9 |
| 1996/1997 | 2.096 | 吨/公顷 | 2026-9 |
| 1995/1996 | 1.79 | 吨/公顷 | 2026-9 |
| 1994/1995 | 1.113 | 吨/公顷 | 2026-9 |
| 1993/1994 | 1.966 | 吨/公顷 | 2026-9 |
| 1992/1993 | 1.778 | 吨/公顷 | 2026-9 |
| 1991/1992 | 1.47 | 吨/公顷 | 2026-9 |
| 1990/1991 | 1.634 | 吨/公顷 | 2026-9 |
| 1989/1990 | 1.579 | 吨/公顷 | 2026-9 |
| 1988/1989 | 1.579 | 吨/公顷 | 2026-9 |
| 1987/1988 | 1.365 | 吨/公顷 | 2026-9 |
| 1986/1987 | 1.448 | 吨/公顷 | 2026-9 |
| 1985/1986 | 1.378 | 吨/公顷 | 2026-9 |
| 1984/1985 | 1.546 | 吨/公顷 | 2026-9 |
| 1983/1984 | 1.703 | 吨/公顷 | 2026-9 |
| 1982/1983 | 0.771 | 吨/公顷 | 2026-9 |
| 1981/1982 | 1.377 | 吨/公顷 | 2026-9 |
| 1980/1981 | 0.962 | 吨/公顷 | 2026-9 |
| 1979/1980 | 1.451 | 吨/公顷 | 2026-9 |
| 1978/1979 | 1.765 | 吨/公顷 | 2026-9 |
| 1977/1978 | 0.941 | 吨/公顷 | 2026-9 |
| 1976/1977 | 1.318 | 吨/公顷 | 2026-9 |
| 1975/1976 | 1.401 | 吨/公顷 | 2026-9 |
| 1974/1975 | 1.367 | 吨/公顷 | 2026-9 |
| 1973/1974 | 1.34 | 吨/公顷 | 2026-9 |
| 1972/1973 | 0.867 | 吨/公顷 | 2026-9 |
| 1971/1972 | 1.206 | 吨/公顷 | 2026-9 |
| 1970/1971 | 1.218 | 吨/公顷 | 2026-9 |
| 1969/1970 | 1.112 | 吨/公顷 | 2026-9 |
| 1968/1969 | 1.365 | 吨/公顷 | 2026-9 |
| 1967/1968 | 0.831 | 吨/公顷 | 2026-9 |
| 1966/1967 | 1.507 | 吨/公顷 | 2026-9 |
| 1965/1966 | 0.997 | 吨/公顷 | 2026-9 |
| 1964/1965 | 1.384 | 吨/公顷 | 2026-9 |
| 1963/1964 | 1.339 | 吨/公顷 | 2026-9 |
| 1962/1963 | 1.253 | 吨/公顷 | 2026-9 |
| 1961/1962 | 1.129 | 吨/公顷 | 2026-9 |
| 1960/1961 | 1.37 | 吨/公顷 | 2026-9 |