| 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 | 29.36 |
| 8 | 2016 | 32.74 |
| 9 | 2015 | 26.20 |
| 10 | 2014 | 34.13 |
| 11 | 2013 | 35.83 |
| 12 | 2012 | 40.97 |
| 13 | 2011 | 40.18 |
| 14 | 2010 | 28.43 |
| 15 | 2009 | 33.87 |
| 16 | 2008 | 45.88 |
| 17 | 2007 | 30.66 |
| 18 | 2006 | 36.45 |
| 19 | 2005 | 32.87 |
| 20 | 2004 | 28.15 |
| 21 | 2003 | 39.17 |
| 22 | 2002 | 25.86 |
| 23 | 2001 | 23.16 |
| 24 | 2000 | 24.55 |
| 25 | 1999 | 20.28 |
| 26 | 1997 | 17.28 |
| 27 | 1996 | 8.13 |
| 28 | 1995 | 8.46 |
| 29 | 1994 | 8.77 |
| 30 | 1993 | 11.63 |
| 31 | 1988 | 15.58 |
| 32 | 1987 | 16.31 |
| 33 | 1986 | 12.27 |
| 34 | 1983 | 5.87 |
| 35 | 1982 | 5.84 |
| 36 | 1981 | 8.09 |
