| 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 | 38.06 |
| 12 | 2012 | 43.67 |
| 13 | 2011 | 42.30 |
| 14 | 2010 | 33.02 |
| 15 | 2009 | 31.63 |
| 16 | 2008 | 39.22 |
| 17 | 2007 | 30.12 |
| 18 | 2006 | 28.98 |
| 19 | 2005 | 33.26 |
| 20 | 2004 | 32.59 |
| 21 | 2003 | 30.02 |
| 22 | 2002 | 29.49 |
| 23 | 2001 | 25.11 |
| 24 | 2000 | 36.55 |
| 25 | 1999 | 43.09 |
| 26 | 1998 | 52.66 |
| 27 | 1997 | 43.15 |
| 28 | 1996 | 42.88 |
| 29 | 1995 | 55.47 |
| 30 | 1989 | 42.73 |
| 31 | 1988 | 42.11 |
| 32 | 1987 | 23.16 |
| 33 | 1986 | 37.91 |
| 34 | 1985 | 36.60 |
| 35 | 1984 | 39.19 |
| 36 | 1983 | 38.45 |
| 37 | 1982 | 55.23 |
| 38 | 1981 | 46.08 |
| 39 | 1980 | 122.61 |
