时间 | 值 (%) | 世界排名 |
---|---|---|
2011 | 3 | 66 |
2010 | 0.8 | 73 |
2009 | 0.4 | 70 |
2008 | 4.1 | 67 |
2007 | 5 | 64 |
2006 | 3.5 | 64 |
2005 | 2.6 | 63 |
2004 | 4.3 | 60 |
2003 | 1.7 | 63 |
2002 | 1.9 | 60 |
2001 | 1.7 | 66 |
2000 | 5.5 | 54 |
1999 | 1.7 | 65 |
1998 | 2.8 | 59 |
1997 | 1.9 | 61 |
1996 | 1.8 | 54 |
1995 | 1 | 52 |
1994 | 9.2 | 35 |
1993 | 0.4 | 46 |