| 年度 | 数值 | 单位 | 发布日期 |
| 2025/2026 | 30000 | 吨 | 2026-9 |
| 2024/2025 | 30500 | 吨 | 2026-9 |
| 2023/2024 | 29600 | 吨 | 2026-9 |
| 2022/2023 | 28000 | 吨 | 2026-9 |
| 2021/2022 | 39600 | 吨 | 2026-9 |
| 2020/2021 | 23100 | 吨 | 2026-9 |
| 2019/2020 | 32400 | 吨 | 2026-9 |
| 2018/2019 | 31000 | 吨 | 2026-9 |
| 2017/2018 | 21700 | 吨 | 2026-9 |
| 2016/2017 | 29100 | 吨 | 2026-9 |
| 2015/2016 | 26200 | 吨 | 2026-9 |
| 2014/2015 | 26000 | 吨 | 2026-9 |
| 2013/2014 | 33400 | 吨 | 2026-9 |
| 2012/2013 | 32100 | 吨 | 2026-9 |
| 2011/2012 | 34600 | 吨 | 2026-9 |
| 2010/2011 | 31200 | 吨 | 2026-9 |
| 2009/2010 | 24800 | 吨 | 2026-9 |
| 2008/2009 | 38500 | 吨 | 2026-9 |
| 2007/2008 | 29100 | 吨 | 2026-9 |
| 2006/2007 | 21600 | 吨 | 2026-9 |
| 2005/2006 | 23900 | 吨 | 2026-9 |
| 2004/2005 | 28300 | 吨 | 2026-9 |
| 2003/2004 | 35400 | 吨 | 2026-9 |
| 2002/2003 | 30100 | 吨 | 2026-9 |
| 2001/2002 | 27400 | 吨 | 2026-9 |
| 1998/1999 | 15000 | 吨 | 2026-9 |
| 1997/1998 | 22637 | 吨 | 2026-9 |
| 1996/1997 | 13632 | 吨 | 2026-9 |
| 1995/1996 | 16485 | 吨 | 2026-9 |
| 1994/1995 | 25734 | 吨 | 2026-9 |
| 1993/1994 | 12039 | 吨 | 2026-9 |
| 1992/1993 | 14181 | 吨 | 2026-9 |
| 1991/1992 | 16000 | 吨 | 2026-9 |
| 1990/1991 | 10000 | 吨 | 2026-9 |
| 1989/1990 | 4000 | 吨 | 2026-9 |
| 1988/1989 | 4000 | 吨 | 2026-9 |
| 1987/1988 | 2952 | 吨 | 2026-9 |
| 1986/1987 | 251 | 吨 | 2026-9 |
| 1985/1986 | 440 | 吨 | 2026-9 |
| 1984/1985 | 658 | 吨 | 2026-9 |
| 1983/1984 | 3061 | 吨 | 2026-9 |
| 1982/1983 | 3061 | 吨 | 2026-9 |