| 序号 | 时间 (年) |
数据 (万吨) |
|---|---|---|
| 1 | 2019 | |
| 2 | 2018 | |
| 3 | 2017 | |
| 4 | 2016 | |
| 5 | 2015 | |
| 6 | 2014 | |
| 7 | 2013 | 39.51 |
| 8 | 2012 | 20.62 |
| 9 | 2011 | 36.66 |
| 10 | 2010 | 39.76 |
| 11 | 2009 | 0.52 |
| 12 | 2008 | 1.98 |
| 13 | 2007 | 0.53 |
| 14 | 2006 | 0.98 |
| 15 | 2005 | 1.80 |
| 16 | 2004 | 3.98 |
| 17 | 2003 | 12.00 |
| 18 | 2000 | 33.13 |
| 19 | 1999 | 33.13 |
| 20 | 1998 | 28.38 |
| 21 | 1997 | 29.90 |
| 22 | 1996 | 26.71 |
| 23 | 1995 | 27.67 |
| 24 | 1990 | 23.70 |
