时间 | 值 (亿美元) | 世界排名 |
---|---|---|
2014 | 1.1 | 123 |
2013 | 1.1 | 124 |
2012 | 1.1 | 123 |
2011 | 0.6 | 126 |
2010 | 0.5 | 134 |
2009 | 0.5 | 129 |
2008 | 0.4 | 137 |
2007 | 0.4 | 132 |
2006 | 0.3 | 136 |
2005 | 0.3 | 139 |
2004 | 0.2 | 140 |
2003 | 0.2 | 140 |
2002 | 0.2 | 135 |
2001 | 0.3 | 125 |
2000 | 0.3 | 119 |
1999 | 0.4 | 117 |
1998 | 0.5 | 106 |
1997 | 0.8 | 101 |
1996 | 0.8 | 97 |
1995 | 0.5 | 101 |
1994 | 0.8 | 92 |
1993 | 0.7 | 96 |
1992 | 0.6 | 92 |
1991 | 0.5 | 93 |
1990 | 0.7 | 91 |
1989 | 0.5 | 89 |
1988 | 0.5 | 89 |
1987 | 0.4 | 88 |
1986 | 0.4 | 83 |