时间 | 值 (%) | 世界排名 |
---|---|---|
2011 | 4.7 | 62 |
2010 | 11.6 | 49 |
2009 | 11.2 | 51 |
2008 | 12.5 | 54 |
2007 | 8.1 | 59 |
2006 | 6.1 | 60 |
2005 | 6.2 | 54 |
2001 | 26.7 | 34 |
2000 | 42.7 | 29 |
1999 | 62 | 11 |
1998 | 49.7 | 22 |
1997 | 20.5 | 40 |
1996 | 11.6 | 35 |
1995 | 7.8 | 37 |
1994 | 10.6 | 33 |
1993 | 3.2 | 39 |