| 序号 |
时间(年) |
数据(单位：亿美元) |
| 1 |
2019 |
|
| 2 |
2013 |
|
| 3 |
2012 |
|
| 4 |
2011 |
|
| 5 |
2010 |
|
| 6 |
2009 |
|
| 7 |
2008 |
|
| 8 |
2007 |
|
| 9 |
2006 |
|
| 10 |
2005 |
|
| 11 |
2004 |
26.33 |
| 12 |
2003 |
20.31 |
| 13 |
2002 |
16.05 |
| 14 |
2001 |
14.23 |
| 15 |
2000 |
13.03 |
| 16 |
1999 |
12.35 |
| 17 |
1998 |
12.40 |
| 18 |
1997 |
12.95 |
| 19 |
1996 |
12.21 |
| 20 |
1995 |
11.39 |
| 21 |
1994 |
11.21 |
| 22 |
1993 |
11.42 |
| 23 |
1992 |
11.86 |
| 24 |
1991 |
10.35 |
| 25 |
1990 |
9.20 |
| 26 |
1989 |
8.06 |
| 27 |
1988 |
7.10 |
| 28 |
1987 |
5.34 |
| 29 |
1986 |
4.05 |
| 30 |
1985 |
3.41 |
| 31 |
1984 |
3.44 |
| 32 |
1983 |
3.63 |
| 33 |
1982 |
4.22 |
| 34 |
1981 |
4.66 |
| 35 |
1980 |
4.53 |
| 36 |
1979 |
3.61 |
| 37 |
1978 |
2.89 |
| 38 |
1977 |
2.58 |
| 39 |
1976 |
2.41 |
| 40 |
1975 |
2.24 |
| 41 |
1974 |
1.86 |
| 42 |
1973 |
1.41 |
| 43 |
1972 |
1.07 |
