| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 2.78 | 89 |
| 2015 | 0.76 | 161 |
| 2014 | -1.83 | 188 |
| 2013 | 2.57 | 114 |
| 2012 | -1.02 | 171 |
| 2011 | 1.4 | 156 |
| 2010 | 0.58 | 170 |
| 2009 | -3.12 | 143 |
| 2008 | 5.37 | 79 |
| 2007 | 5.89 | 100 |
| 2006 | 4.9 | 118 |
| 2005 | 5.54 | 87 |
| 2004 | 9.05 | 29 |
| 2003 | 4.42 | 90 |
| 2002 | 7.12 | 22 |
| 2001 | 4.99 | 51 |
| 2000 | 7.76 | 26 |
| 1999 | -12.15 | 195 |
| 1998 | 2.43 | 137 |
| 1997 | 7.18 | 37 |
| 1996 | 2.43 | 134 |