时间 | 值 (%) | 世界排名 |
---|---|---|
2016 | 0.4 | 51 |
2015 | 0.8 | 49 |
2014 | 0.9 | 58 |
2013 | 1.2 | 56 |
2012 | 0.9 | 64 |
2011 | 0.9 | 65 |
2010 | 1.4 | 60 |
2009 | 2.7 | 55 |
2008 | 8 | 44 |
2007 | 10.4 | 47 |
2006 | 2.5 | 62 |
2005 | 1.7 | 60 |
2004 | 1.9 | 58 |
2001 | 0.4 | 71 |
1999 | 0.3 | 72 |
1998 | 1.9 | 57 |
1997 | 1.4 | 60 |
1996 | 0.9 | 62 |
1995 | 0.3 | 64 |
1994 | 0.2 | 64 |
1993 | 0.2 | 56 |