| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 6.59 | 23 |
| 2015 | -2.61 | 151 |
| 2014 | -13.8 | 171 |
| 2013 | 6.12 | 48 |
| 2012 | 6.79 | 37 |
| 2011 | 13.57 | 18 |
| 2010 | 13.46 | 12 |
| 2009 | 20.16 | 6 |
| 2008 | 8.27 | 36 |
| 2007 | 8.11 | 51 |
| 2006 | -17.36 | 166 |
| 2005 | 18.53 | 6 |
| 2004 | 12.41 | 25 |
| 2003 | 26.64 | 1 |
| 2002 | -20.43 | 169 |
| 2001 | -4.58 | 145 |
| 2000 | -25.73 | 159 |
| 1999 | 21.75 | 5 |
| 1998 | 15.57 | 8 |
| 1997 | 3.17 | 92 |
| 1996 | -6.73 | 148 |
| 1995 | -5.17 | 119 |