| 时间 |
值 （亿美元） |
世界排名 |
| 2016 |
1829.8 |
45 |
| 2015 |
1904.4 |
49 |
| 2014 |
2243.5 |
45 |
| 2013 |
2260.5 |
45 |
| 2012 |
1845.4 |
51 |
| 2011 |
1548 |
53 |
| 2010 |
1311.3 |
53 |
| 2009 |
1115.3 |
55 |
| 2008 |
1058.2 |
56 |
| 2007 |
731.1 |
61 |
| 2006 |
570.5 |
61 |
| 2005 |
534.8 |
59 |
| 2004 |
394.5 |
61 |
| 1990 |
1794 |
20 |
| 1989 |
662.4 |
33 |
| 1988 |
644.6 |
30 |
| 1987 |
582.5 |
31 |
| 1986 |
518.1 |
32 |