时间 | 值 (%) | 世界排名 |
---|---|---|
2011 | 29.6 | 33 |
2010 | 30.7 | 32 |
2009 | 55.2 | 24 |
2008 | 181 | 11 |
2007 | 143.2 | 7 |
2006 | 278 | 1 |
2005 | 307.7 | 1 |
2004 | 307.7 | 1 |
2001 | 254 | 2 |
2000 | 467.9 | 1 |
1999 | 297.2 | 1 |
1998 | 165.9 | 5 |
1997 | 89.5 | 7 |
1996 | 47.7 | 12 |
1995 | 1.7 | 48 |
1994 | 0.5 | 50 |
1993 | 0.3 | 47 |