| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 0.38 | 124 |
| 2015 | 0.563 | 135 |
| 2014 | 0.539 | 148 |
| 2013 | 0.527 | 149 |
| 2012 | 0.416 | 154 |
| 2011 | 0.589 | 149 |
| 2010 | 0.911 | 150 |
| 2009 | 1.286 | 147 |
| 2008 | 2.467 | 141 |
| 2007 | 2.535 | 146 |
| 2006 | 2.035 | 148 |
| 2005 | 1.623 | 151 |
| 2004 | 1.018 | 149 |
| 2003 | 1.022 | 146 |
| 2002 | 1.471 | 138 |
| 2001 | 3.173 | 122 |
| 2000 | 4.586 | 108 |
| 1999 | 3.72 | 126 |
| 1998 | 3.978 | 128 |
| 1997 | 4.21 | 123 |
| 1996 | 4.576 | 114 |
| 1995 | 5.33 | 107 |