| 年度 | 数值 | 单位 | 发布日期 |
| 2025/2026 | 27000 | 吨 | 2026-9 |
| 2024/2025 | 25700 | 吨 | 2026-9 |
| 2023/2024 | 22800 | 吨 | 2026-9 |
| 2022/2023 | 22500 | 吨 | 2026-9 |
| 2021/2022 | 28000 | 吨 | 2026-9 |
| 2020/2021 | 25000 | 吨 | 2026-9 |
| 2019/2020 | 38200 | 吨 | 2026-9 |
| 2018/2019 | 34100 | 吨 | 2026-9 |
| 2017/2018 | 45100 | 吨 | 2026-9 |
| 2016/2017 | 34900 | 吨 | 2026-9 |
| 2015/2016 | 35100 | 吨 | 2026-9 |
| 2014/2015 | 37700 | 吨 | 2026-9 |
| 2013/2014 | 27800 | 吨 | 2026-9 |
| 2012/2013 | 26100 | 吨 | 2026-9 |
| 2011/2012 | 26000 | 吨 | 2026-9 |
| 2010/2011 | 16800 | 吨 | 2026-9 |
| 2009/2010 | 17400 | 吨 | 2026-9 |
| 2008/2009 | 17800 | 吨 | 2026-9 |
| 2007/2008 | 17900 | 吨 | 2026-9 |
| 2006/2007 | 22100 | 吨 | 2026-9 |
| 2005/2006 | 26000 | 吨 | 2026-9 |
| 2004/2005 | 27300 | 吨 | 2026-9 |
| 2003/2004 | 23600 | 吨 | 2026-9 |
| 2002/2003 | 23600 | 吨 | 2026-9 |
| 2001/2002 | 11200 | 吨 | 2026-9 |