| 序号 | 时间 (年) |
数据 (百万美元) |
|---|---|---|
| 1 | 2023 | |
| 2 | 2022 | |
| 3 | 2021 | |
| 4 | 2020 | |
| 5 | 2019 | |
| 6 | 2018 | |
| 7 | 2017 | 5.37 |
| 8 | 2016 | 3.22 |
| 9 | 2015 | 3.84 |
| 10 | 2014 | 3.04 |
| 11 | 2013 | 2.13 |
| 12 | 2012 | 5.39 |
| 13 | 2011 | 5.94 |
| 14 | 2010 | 5.15 |
| 15 | 2009 | 4.85 |
| 16 | 2008 | 5.91 |
| 17 | 2007 | 34.47 |
| 18 | 2006 | 17.19 |
| 19 | 2005 | 34.24 |
| 20 | 2004 | 27.84 |
| 21 | 2003 | 15.14 |
| 22 | 2002 | 10.28 |
| 23 | 2001 | 5.43 |
| 24 | 2000 | 8.49 |
| 25 | 1999 | 13.66 |
| 26 | 1998 | 17.67 |
| 27 | 1997 | 12.60 |
| 28 | 1996 | 14.11 |
| 29 | 1995 | 18.11 |
| 30 | 1994 | 15.39 |
| 31 | 1993 | 22.81 |
| 32 | 1989 | 13.61 |
| 33 | 1980 | 2.92 |
