| 时间 | 值 | 世界排名 |
|---|---|---|
| 2016 | 2.4 | 51 |
| 2015 | 2.3 | 108 |
| 2014 | 1.9 | 117 |
| 2013 | 4.5 | 67 |
| 2012 | 4.4 | 68 |
| 2011 | 3.9 | 80 |
| 2010 | 6.4 | 40 |
| 2009 | 7.2 | 38 |
| 2008 | 2.9 | 88 |
| 2007 | 3.4 | 89 |
| 2006 | 3.7 | 71 |
| 2005 | 2.7 | 97 |
| 2004 | 3 | 92 |
| 2003 | 3.3 | 80 |
| 2002 | 4.1 | 60 |
| 2001 | 4.3 | 47 |
| 2000 | 3.8 | 53 |
| 1999 | 3.2 | 68 |
| 1998 | 2.8 | 75 |
| 1997 | 3.1 | 62 |
| 1996 | 3.1 | 61 |
| 1995 | 3.2 | 50 |
| 1994 | 4.6 | 34 |
| 1993 | 5 | 27 |