| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 2.13 | 54 |
| 2015 | 4 | 55 |
| 2014 | 3.07 | 79 |
| 2013 | -.51 | 174 |
| 2012 | -.94 | 177 |
| 2011 | 8.54 | 40 |
| 2010 | 7.11 | 36 |
| 2009 | 1.73 | 116 |
| 2008 | 10 | 77 |
| 2007 | 9.24 | 31 |
| 2006 | 9.16 | 34 |
| 2005 | 8.25 | 50 |
| 2004 | 5.66 | 62 |
| 2003 | 0.84 | 146 |
| 2002 | 5.59 | 55 |
| 2001 | 4.65 | 74 |
| 2000 | 4.06 | 71 |
| 1999 | 19.19 | 21 |
| 1998 | 3.57 | 97 |
| 1997 | 7.09 | 70 |
| 1996 | 39.36 | 16 |
| 1995 | 162.72 | 11 |