| 序号 | 时间 (年) |
数据 (万吨) |
|---|---|---|
| 1 | 2021 | |
| 2 | 2020 | |
| 3 | 2019 | |
| 4 | 2018 | |
| 5 | 2017 | |
| 6 | 2016 | |
| 7 | 2015 | 61.75 |
| 8 | 2014 | 61.44 |
| 9 | 2013 | 50.81 |
| 10 | 2012 | 55.57 |
| 11 | 2011 | 49.79 |
| 12 | 2010 | 45.70 |
| 13 | 2009 | 43.79 |
| 14 | 2008 | 43.38 |
| 15 | 2007 | 38.99 |
| 16 | 2006 | 35.00 |
| 17 | 2005 | 31.87 |
| 18 | 2004 | 32.65 |
| 19 | 2003 | 31.71 |
| 20 | 2002 | 31.93 |
| 21 | 2001 | 24.38 |
| 22 | 1999 | 20.30 |
| 23 | 1998 | 18.35 |
| 24 | 1995 | 17.74 |
| 25 | 1990 | 11.27 |
| 26 | 1985 | 3.69 |
