| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | -.216 | 126 |
| 2015 | -.384 | 158 |
| 2014 | 1.071 | 143 |
| 2013 | -1.934 | 171 |
| 2012 | -7.225 | 176 |
| 2011 | -8.926 | 177 |
| 2010 | -4.372 | 170 |
| 2009 | -4.293 | 161 |
| 2008 | 3.281 | 109 |
| 2007 | 5.123 | 113 |
| 2006 | 3.096 | 134 |
| 2005 | 1.897 | 143 |
| 2004 | 6.836 | 61 |
| 2003 | 5.263 | 60 |
| 2002 | 4.072 | 77 |
| 2001 | 2.771 | 101 |
| 2000 | 4.226 | 94 |
| 1999 | 0.105 | 125 |
| 1998 | 4.781 | 54 |
| 1997 | 4.934 | 70 |
| 1996 | 3.559 | 81 |