时间 | 值 (%) | 世界排名 |
---|---|---|
2013 | 3.3 | 48 |
2012 | 2 | 55 |
2011 | 2.2 | 55 |
2010 | 2 | 57 |
2009 | 0.5 | 66 |
2008 | 2.1 | 63 |
2007 | 3.5 | 60 |
2006 | 5.3 | 52 |
2005 | 2.7 | 51 |
2004 | 1.8 | 61 |
2003 | 1.3 | 59 |
2002 | 0.3 | 68 |
2001 | 0.3 | 74 |
2000 | 0.3 | 71 |
1999 | 0.4 | 70 |
1998 | 0.5 | 72 |
1997 | 0.7 | 68 |
1996 | 0.6 | 64 |
1995 | 0.7 | 57 |
1994 | 1 | 54 |
1993 | 0.2 | 55 |