| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2015 | 73.289 | 30 |
| 2014 | 72.244 | 34 |
| 2013 | 71.604 | 37 |
| 2012 | 69.601 | 49 |
| 2011 | 69.752 | 47 |
| 2010 | 69.291 | 51 |
| 2009 | 69.554 | 51 |
| 2008 | 69.746 | 43 |
| 2007 | 69.324 | 46 |
| 2006 | 69.493 | 40 |
| 2005 | 67.12 | 51 |
| 2004 | 67.047 | 49 |
| 2003 | 66.535 | 50 |
| 2002 | 69.321 | 39 |
| 2001 | 63.641 | 62 |
| 2000 | 63.807 | 60 |
| 1999 | 58.835 | 72 |
| 1998 | 59.894 | 65 |
| 1997 | 60.261 | 62 |
| 1996 | 55.617 | 78 |
| 1995 | 55.291 | 77 |
| 1994 | 53.26 | 64 |