| 序号 |
时间(年) |
数据(单位：百万美元) |
| 1 |
2023 |
|
| 2 |
2022 |
|
| 3 |
2021 |
|
| 4 |
2020 |
|
| 5 |
2019 |
|
| 6 |
2018 |
|
| 7 |
2017 |
67.00 |
| 8 |
2016 |
55.90 |
| 9 |
2015 |
54.68 |
| 10 |
2014 |
54.12 |
| 11 |
2013 |
48.53 |
| 12 |
2012 |
49.61 |
| 13 |
2011 |
49.19 |
| 14 |
2010 |
43.63 |
| 15 |
2009 |
39.90 |
| 16 |
2008 |
52.38 |
| 17 |
2007 |
62.31 |
| 18 |
2006 |
53.00 |
| 19 |
2005 |
56.51 |
| 20 |
2004 |
50.47 |
| 21 |
2003 |
44.85 |
| 22 |
2002 |
36.06 |
| 23 |
2001 |
36.00 |
| 24 |
2000 |
41.48 |
| 25 |
1999 |
46.81 |
| 26 |
1998 |
54.41 |
| 27 |
1997 |
50.73 |
| 28 |
1996 |
53.62 |
| 29 |
1995 |
45.51 |
| 30 |
1994 |
39.48 |
| 31 |
1993 |
37.43 |
| 32 |
1992 |
40.73 |
| 33 |
1991 |
42.84 |
| 34 |
1990 |
39.86 |
| 35 |
1989 |
36.60 |
| 36 |
1988 |
43.43 |
| 37 |
1987 |
47.86 |
| 38 |
1986 |
38.58 |
| 39 |
1985 |
29.99 |
| 40 |
1984 |
26.35 |
| 41 |
1983 |
25.82 |
| 42 |
1982 |
32.58 |
| 43 |
1981 |
36.49 |
| 44 |
1980 |
37.01 |
