| 序号 | 时间 (年) |
数据 (万吨) |
|---|---|---|
| 1 | 2019 | |
| 2 | 2018 | |
| 3 | 2016 | |
| 4 | 2014 | |
| 5 | 2013 | |
| 6 | 2012 | |
| 7 | 2011 | 2.07 |
| 8 | 2010 | 1.62 |
| 9 | 2009 | 1.43 |
| 10 | 2008 | 1.98 |
| 11 | 2007 | 1.78 |
| 12 | 2006 | 1.75 |
| 13 | 2005 | 1.56 |
| 14 | 2004 | 1.54 |
| 15 | 2003 | 1.08 |
| 16 | 2002 | 1.39 |
| 17 | 2001 | 1.22 |
| 18 | 1991 | 0.16 |
| 19 | 1990 | 0.14 |
| 20 | 1989 | 0.11 |
| 21 | 1987 | 0.11 |
| 22 | 1986 | 0.08 |
| 23 | 1985 | 0.05 |
