| 序号 | 时间 (年) |
数据 (万吨) |
|---|---|---|
| 1 | 2021 | |
| 2 | 2020 | |
| 3 | 2019 | |
| 4 | 2018 | |
| 5 | 2014 | |
| 6 | 2013 | |
| 7 | 2012 | 49.52 |
| 8 | 2011 | 77.08 |
| 9 | 2010 | 91.71 |
| 10 | 2009 | 104.41 |
| 11 | 2008 | 65.36 |
| 12 | 2007 | 43.02 |
| 13 | 2006 | 23.27 |
| 14 | 2005 | 11.84 |
| 15 | 2004 | 0.67 |
