| 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 | |
| 8 | 2016 | |
| 9 | 2015 | |
| 10 | 2014 | |
| 11 | 2013 | 33.36 |
| 12 | 2012 | 39.35 |
| 13 | 2011 | 31.53 |
| 14 | 2010 | 27.49 |
| 15 | 2009 | 25.45 |
| 16 | 2008 | 26.75 |
| 17 | 2007 | 25.07 |
| 18 | 2006 | 28.28 |
| 19 | 2005 | 31.73 |
| 20 | 2004 | 30.37 |
| 21 | 2003 | 25.25 |
| 22 | 2002 | 23.58 |
| 23 | 2001 | 23.89 |
| 24 | 2000 | 16.43 |
| 25 | 1999 | 12.73 |
| 26 | 1998 | 10.14 |
| 27 | 1997 | 12.83 |
| 28 | 1996 | 9.34 |
| 29 | 1988 | 4.41 |
| 30 | 1987 | 21.94 |
| 31 | 1985 | 13.45 |
| 32 | 1984 | 10.06 |
| 33 | 1983 | 5.91 |
| 34 | 1982 | 5.38 |
| 35 | 1981 | 5.58 |
| 36 | 1980 | 7.76 |
