时间 | 值 (%) | 世界排名 |
---|---|---|
2016 | 3.3 | 38 |
2015 | 2.5 | 41 |
2014 | 2.8 | 50 |
2013 | 1.9 | 52 |
2012 | 2.2 | 54 |
2011 | 2.9 | 51 |
2010 | 4.2 | 49 |
2009 | 5.7 | 47 |
2008 | 12.8 | 41 |
2007 | 11.5 | 45 |
2006 | 9.4 | 43 |
2005 | 19.5 | 29 |
2004 | 3.3 | 49 |
2003 | 1 | 62 |
2002 | 0.9 | 61 |
2001 | 1.3 | 59 |
2000 | 3.1 | 52 |
1999 | 2.5 | 52 |