| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 4.32 | 19 |
| 2015 | 4.33 | 24 |
| 2014 | 2.22 | 60 |
| 2013 | 6.17 | 20 |
| 2012 | 4.43 | 42 |
| 2011 | 4.85 | 38 |
| 2010 | 4.97 | 36 |
| 2009 | -14.65 | 155 |
| 2008 | -6.9 | 150 |
| 2007 | 11.11 | 20 |
| 2006 | 20.49 | 6 |
| 2005 | 11.22 | 13 |
| 2004 | 11.68 | 12 |
| 2003 | 9.11 | 16 |
| 2002 | 7.37 | 25 |
| 2001 | 6.44 | 21 |
| 2000 | 3.33 | 43 |
| 1999 | 4.51 | 33 |
| 1998 | 1.86 | 80 |
| 1997 | 6.27 | 25 |
| 1996 | 6.33 | 31 |
| 1995 | -.41 | 91 |