| 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 | 28.64 |
| 12 | 2012 | 36.20 |
| 13 | 2011 | 28.13 |
| 14 | 2010 | 24.21 |
| 15 | 2009 | 22.53 |
| 16 | 2008 | 20.70 |
| 17 | 2007 | 20.50 |
| 18 | 2006 | 23.19 |
| 19 | 2005 | 27.16 |
| 20 | 2004 | 27.22 |
| 21 | 2003 | 21.99 |
| 22 | 2002 | 21.38 |
| 23 | 2001 | 22.41 |
| 24 | 2000 | 14.46 |
| 25 | 1999 | 10.66 |
| 26 | 1998 | 8.55 |
| 27 | 1997 | 9.63 |
| 28 | 1996 | 6.74 |
| 29 | 1988 | 3.39 |
| 30 | 1987 | 20.44 |
| 31 | 1985 | 13.08 |
| 32 | 1984 | 9.86 |
| 33 | 1983 | 5.59 |
| 34 | 1982 | 5.15 |
| 35 | 1981 | 5.46 |
| 36 | 1980 | 7.58 |
