| 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 | 40.11 |
| 12 | 2012 | 50.98 |
| 13 | 2011 | 26.77 |
| 14 | 2010 | 23.40 |
| 15 | 2009 | 26.59 |
| 16 | 2008 | 22.44 |
| 17 | 2007 | 23.25 |
| 18 | 2006 | 21.61 |
| 19 | 2005 | 30.06 |
| 20 | 2004 | 8.54 |
| 21 | 1999 | 19.93 |
| 22 | 1995 | 16.00 |
| 23 | 1993 | 14.89 |
| 24 | 1992 | 23.46 |
| 25 | 1991 | 12.85 |
| 26 | 1990 | 14.66 |
| 27 | 1989 | 11.24 |
| 28 | 1988 | 11.41 |
| 29 | 1987 | 8.62 |
| 30 | 1986 | 7.77 |
| 31 | 1985 | 7.59 |
| 32 | 1984 | 9.34 |
| 33 | 1983 | 9.50 |
| 34 | 1982 | 10.85 |
| 35 | 1981 | 11.04 |
| 36 | 1980 | 8.60 |
