| 序号 | 时间 (年) |
数据 (万吨) |
|---|---|---|
| 1 | 2024 | |
| 2 | 2023 | |
| 3 | 2022 | |
| 4 | 2021 | |
| 5 | 2020 | |
| 6 | 2019 | |
| 7 | 2018 | 17.25 |
| 8 | 2017 | 16.93 |
| 9 | 2016 | 19.19 |
| 10 | 2015 | 19.76 |
| 11 | 2014 | 20.00 |
| 12 | 2013 | 19.10 |
| 13 | 2012 | 18.81 |
| 14 | 2011 | 18.44 |
| 15 | 2010 | 18.73 |
| 16 | 2009 | 17.95 |
| 17 | 2008 | 17.61 |
| 18 | 2007 | 16.58 |
| 19 | 2006 | 17.22 |
| 20 | 2005 | 16.69 |
| 21 | 2004 | 16.94 |
| 22 | 2003 | 17.36 |
| 23 | 2002 | 17.23 |
| 24 | 2001 | 16.81 |
| 25 | 2000 | 16.23 |
| 26 | 1999 | 16.10 |
| 27 | 1998 | 15.39 |
| 28 | 1997 | 14.81 |
| 29 | 1995 | 13.10 |
| 30 | 1990 | 11.47 |
| 31 | 1978 | 4.01 |
