| 序号 | 时间 (年) |
数据 (万吨) |
|---|---|---|
| 1 | 2021 | |
| 2 | 2020 | |
| 3 | 2019 | |
| 4 | 2018 | |
| 5 | 2017 | |
| 6 | 2016 | |
| 7 | 2015 | 36.35 |
| 8 | 2014 | 35.42 |
| 9 | 2013 | 38.72 |
| 10 | 2012 | 41.86 |
| 11 | 2011 | 43.77 |
| 12 | 2010 | 47.86 |
| 13 | 2009 | 40.52 |
| 14 | 2008 | 51.53 |
| 15 | 2007 | 52.76 |
| 16 | 2006 | 60.09 |
| 17 | 2005 | 69.75 |
| 18 | 2004 | 88.05 |
| 19 | 2003 | 98.17 |
| 20 | 1998 | 35.80 |
| 21 | 1997 | 35.34 |
| 22 | 1996 | 30.34 |
| 23 | 1995 | 20.79 |
| 24 | 1994 | 23.94 |
| 25 | 1993 | 15.26 |
| 26 | 1992 | 9.33 |
| 27 | 1991 | 5.13 |
| 28 | 1990 | 3.55 |
