| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 5.54 | 39 |
| 2015 | 3.315 | 65 |
| 2014 | 3.527 | 68 |
| 2013 | 3.145 | 84 |
| 2012 | 3.604 | 81 |
| 2011 | 6.309 | 48 |
| 2010 | 12.756 | 8 |
| 2009 | 7.589 | 50 |
| 2008 | 6.538 | 66 |
| 2007 | 6.756 | 58 |
| 2006 | 4.5 | 84 |
| 2005 | 13.398 | 7 |
| 2004 | 15.439 | 6 |
| 2003 | 26.173 | 4 |
| 2002 | 48.691 | 3 |
| 2001 | 47.909 | 2 |
| 2000 | 39.578 | 4 |
| 1999 | 36.573 | 4 |
| 1998 | 36.875 | 8 |
| 1997 | 29.25 | 10 |
| 1996 | 147.125 | 1 |
| 1995 | 125.917 | 1 |