| 年度 | 数值 | 单位 | 发布日期 |
| 2025/2026 | 19000 | 吨 | 2026-9 |
| 2024/2025 | 22000 | 吨 | 2026-9 |
| 2023/2024 | 19700 | 吨 | 2026-9 |
| 2022/2023 | 16500 | 吨 | 2026-9 |
| 2021/2022 | 18000 | 吨 | 2026-9 |
| 2020/2021 | 21700 | 吨 | 2026-9 |
| 2019/2020 | 15700 | 吨 | 2026-9 |
| 2018/2019 | 22200 | 吨 | 2026-9 |
| 2017/2018 | 18300 | 吨 | 2026-9 |
| 2016/2017 | 13500 | 吨 | 2026-9 |
| 2015/2016 | 20800 | 吨 | 2026-9 |
| 2014/2015 | 17800 | 吨 | 2026-9 |
| 2013/2014 | 14100 | 吨 | 2026-9 |
| 2012/2013 | 16500 | 吨 | 2026-9 |
| 2011/2012 | 16000 | 吨 | 2026-9 |
| 2010/2011 | 11100 | 吨 | 2026-9 |
| 2009/2010 | 13650 | 吨 | 2026-9 |
| 2008/2009 | 14150 | 吨 | 2026-9 |
| 2007/2008 | 14200 | 吨 | 2026-9 |
| 2006/2007 | 11800 | 吨 | 2026-9 |
| 2005/2006 | 10100 | 吨 | 2026-9 |
| 2004/2005 | 8500 | 吨 | 2026-9 |
| 2003/2004 | 8600 | 吨 | 2026-9 |
| 2002/2003 | 7800 | 吨 | 2026-9 |
| 2001/2002 | 7000 | 吨 | 2026-9 |
| 1995/1996 | 7550 | 吨 | 2026-9 |
| 1994/1995 | 7383 | 吨 | 2026-9 |
| 1993/1994 | 7082 | 吨 | 2026-9 |
| 1992/1993 | 7100 | 吨 | 2026-9 |
| 1991/1992 | 7188 | 吨 | 2026-9 |
| 1990/1991 | 7704 | 吨 | 2026-9 |
| 1989/1990 | 7128 | 吨 | 2026-9 |
| 1988/1989 | 7121 | 吨 | 2026-9 |
| 1987/1988 | 6100 | 吨 | 2026-9 |
| 1986/1987 | 5800 | 吨 | 2026-9 |
| 1985/1986 | 5100 | 吨 | 2026-9 |
| 1984/1985 | 3500 | 吨 | 2026-9 |
| 1983/1984 | 4200 | 吨 | 2026-9 |