| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 18.2 | 2 |
| 2015 | -13.4 | 165 |
| 2014 | 8.5 | 22 |
| 2013 | 46.6 | 1 |
| 2012 | -20.1 | 178 |
| 2011 | 5.16 | 58 |
| 2010 | 7.39 | 28 |
| 2009 | -9.95 | 165 |
| 2008 | 41.03 | 2 |
| 2007 | -34.88 | 174 |
| 2006 | -2.82 | 138 |
| 2005 | 1.48 | 94 |
| 2004 | 20.36 | 7 |
| 2003 | -10.9 | 161 |
| 2002 | 5.07 | 44 |
| 2001 | 7.38 | 37 |
| 2000 | 2.33 | 82 |
| 1999 | -4.07 | 139 |
| 1998 | -6.23 | 141 |
| 1997 | 12.03 | 10 |
| 1996 | -12.29 | 152 |