| 年度 | 数值 | 单位 | 发布日期 |
| 2025/2026 | 45000 | 吨 | 2026-9 |
| 2024/2025 | 41400 | 吨 | 2026-9 |
| 2023/2024 | 49900 | 吨 | 2026-9 |
| 2022/2023 | 56500 | 吨 | 2026-9 |
| 2021/2022 | 58300 | 吨 | 2026-9 |
| 2020/2021 | 45200 | 吨 | 2026-9 |
| 2019/2020 | 48600 | 吨 | 2026-9 |
| 2018/2019 | 53900 | 吨 | 2026-9 |
| 2017/2018 | 39600 | 吨 | 2026-9 |
| 2016/2017 | 53600 | 吨 | 2026-9 |
| 2015/2016 | 49900 | 吨 | 2026-9 |
| 2014/2015 | 54100 | 吨 | 2026-9 |
| 2013/2014 | 38600 | 吨 | 2026-9 |
| 2012/2013 | 43400 | 吨 | 2026-9 |
| 2011/2012 | 17400 | 吨 | 2026-9 |
| 2010/2011 | 10700 | 吨 | 2026-9 |
| 2009/2010 | 17600 | 吨 | 2026-9 |
| 2008/2009 | 12700 | 吨 | 2026-9 |
| 2007/2008 | 4700 | 吨 | 2026-9 |
| 2006/2007 | 1600 | 吨 | 2026-9 |
| 2005/2006 | 6000 | 吨 | 2026-9 |
| 2004/2005 | 1000 | 吨 | 2026-9 |
| 2003/2004 | 2900 | 吨 | 2026-9 |
| 2002/2003 | 1100 | 吨 | 2026-9 |
| 2001/2002 | 1700 | 吨 | 2026-9 |