时间 | 值 (%) | 世界排名 |
---|---|---|
2011 | 9 | 51 |
2010 | 5.5 | 58 |
2009 | 1.8 | 67 |
2008 | 6.8 | 64 |
2007 | 8.5 | 58 |
2006 | 12 | 47 |
2005 | 7.9 | 51 |
2004 | 7.3 | 54 |
2003 | 4.8 | 55 |
2002 | 2.6 | 53 |
2001 | 3.8 | 58 |
2000 | 3 | 60 |
1998 | 3.6 | 56 |
1997 | 5.4 | 52 |
1996 | 4 | 49 |
1995 | 3 | 46 |
1994 | 2.3 | 45 |
1993 | 1.1 | 44 |