| 时间 | 值 | 世界排名 |
|---|---|---|
| 2015 | 2.9 | 96 |
| 2014 | 1.2 | 132 |
| 2013 | 2.3 | 126 |
| 2012 | 2.7 | 121 |
| 2011 | 3.7 | 89 |
| 2010 | 5.4 | 57 |
| 2009 | 5.2 | 68 |
| 2008 | 3.6 | 65 |
| 2007 | 5.3 | 46 |
| 2006 | 4.9 | 45 |
| 2005 | 5.3 | 31 |
| 2004 | 3.3 | 80 |
| 2003 | 3.1 | 83 |
| 2002 | 2.6 | 94 |
| 2001 | 1.8 | 108 |
| 2000 | 1 | 131 |
| 1999 | 0.9 | 136 |
| 1998 | 0.5 | 139 |
| 1997 | 1.2 | 131 |
| 1996 | 1.2 | 122 |
| 1995 | 0.7 | 136 |
| 1994 | 0.4 | 135 |