| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 12.598 | 39 |
| 2015 | 15.717 | 28 |
| 2014 | 11.142 | 55 |
| 2013 | 9.467 | 76 |
| 2012 | 9.1 | 85 |
| 2011 | 8.458 | 94 |
| 2010 | 10.817 | 65 |
| 2009 | 15.308 | 40 |
| 2008 | 12.225 | 71 |
| 2007 | 10.033 | 92 |
| 2006 | 10.425 | 86 |
| 2005 | 10.683 | 82 |
| 2004 | 11.442 | 77 |
| 2003 | 12.975 | 74 |
| 2002 | 15.7 | 60 |
| 2001 | 17.908 | 55 |
| 2000 | 24.433 | 30 |
| 1999 | 39.717 | 15 |
| 1998 | 41.792 | 17 |
| 1997 | 32.042 | 23 |
| 1996 | 146.808 | 3 |
| 1995 | 320.308 | 1 |