| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 282 | 21 |
| 2015 | 288 | 23 |
| 2014 | 300 | 23 |
| 2013 | 278 | 25 |
| 2012 | 273 | 24 |
| 2011 | 275 | 24 |
| 2010 | 245 | 22 |
| 2009 | 212 | 21 |
| 2008 | 227 | 23 |
| 2007 | 275 | 15 |
| 2006 | 273 | 15 |
| 2005 | 255 | 14 |
| 2004 | 244 | 15 |
| 2003 | 214 | 14 |
| 2002 | 204 | 13 |
| 2001 | 197 | 12 |
| 2000 | 221 | 12 |
| 1999 | 209 | 12 |
| 1998 | 160 | 13 |
| 1997 | 252 | 11 |
| 1996 | 299 | 9 |
| 1995 | 297 | 8 |
| 1994 | 258 | 8 |
| 1993 | 228 | 10 |
| 1992 | 231 | 10 |
| 1991 | 222 | 10 |
| 1990 | 212 | 10 |
| 1989 | 207 | 8 |
| 1988 | 181 | 8 |
| 1987 | 135 | 10 |
| 1986 | 120 | 9 |