| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 1.43 | 87 |
| 2015 | 0.69 | 122 |
| 2014 | -6.74 | 167 |
| 2013 | -5.26 | 162 |
| 2012 | -6.24 | 162 |
| 2011 | -10.82 | 176 |
| 2010 | -13.62 | 172 |
| 2009 | -.31 | 76 |
| 2008 | -14.38 | 173 |
| 2007 | -3.89 | 158 |
| 2006 | 13.19 | 30 |
| 2005 | -5.83 | 165 |
| 2004 | 2.98 | 118 |
| 2003 | 10.84 | 32 |
| 2002 | 4.48 | 73 |
| 2001 | 6.88 | 36 |
| 2000 | 3.5 | 99 |
| 1999 | 9.52 | 22 |
| 1998 | 5.48 | 54 |
| 1997 | 2.53 | 96 |
| 1996 | -.75 | 127 |