| 序号 | 时间 (年) |
数据 (万吨) |
|---|---|---|
| 1 | 2020 | |
| 2 | 2019 | |
| 3 | 2018 | |
| 4 | 2017 | |
| 5 | 2016 | |
| 6 | 2015 | |
| 7 | 2014 | 53.53 |
| 8 | 2013 | 55.67 |
| 9 | 2012 | 25.08 |
| 10 | 2011 | 24.01 |
| 11 | 2010 | 22.66 |
| 12 | 2009 | 16.90 |
| 13 | 2008 | 24.66 |
| 14 | 2007 | 28.61 |
| 15 | 2006 | 27.91 |
| 16 | 2005 | 31.55 |
| 17 | 2004 | 32.80 |
| 18 | 2003 | 23.42 |
| 19 | 2002 | 18.04 |
| 20 | 2001 | 29.60 |
| 21 | 2000 | 33.95 |
| 22 | 1999 | 28.94 |
| 23 | 1998 | 38.21 |
| 24 | 1997 | 39.69 |
| 25 | 1996 | 50.90 |
| 26 | 1995 | 55.29 |
| 27 | 1991 | 60.42 |
