| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 3.032 | 69 |
| 2015 | 3.756 | 71 |
| 2014 | 3.102 | 96 |
| 2013 | 1.727 | 132 |
| 2012 | 8.991 | 23 |
| 2011 | 17.025 | 3 |
| 2010 | 10.008 | 17 |
| 2009 | 6.171 | 33 |
| 2008 | 0.484 | 149 |
| 2007 | 2.565 | 147 |
| 2006 | -.096 | 158 |
| 2005 | 9.901 | 23 |
| 2004 | 6.487 | 69 |
| 2003 | 8.204 | 22 |
| 2002 | -5.771 | 162 |
| 2001 | -4.109 | 163 |
| 2000 | -.22 | 143 |
| 1999 | 3.842 | 75 |
| 1998 | 12.636 | 5 |
| 1997 | 21.828 | 4 |
| 1996 | -4.157 | 144 |
| 1995 | 1.297 | 100 |