| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 1.96 | 29 |
| 2015 | 2.02 | 30 |
| 2014 | 2.06 | 30 |
| 2013 | 2.1 | 29 |
| 2012 | 2.14 | 28 |
| 2011 | 2.14 | 33 |
| 2010 | 2.06 | 37 |
| 2009 | 2.07 | 36 |
| 2008 | 2.08 | 38 |
| 2007 | 1.75 | 52 |
| 2006 | 1.75 | 50 |
| 2005 | 1.76 | 52 |
| 2004 | 1.76 | 51 |
| 2003 | 1.76 | 50 |
| 2002 | 1.76 | 50 |
| 2001 | 1.77 | 51 |
| 2000 | 1.77 | 47 |
| 1999 | 1.77 | 51 |
| 1998 | 1.38 | 70 |
| 1997 | 2.82 | 17 |
| 1996 | 2.82 | 18 |
| 1995 | 2.84 | 19 |
| 1994 | 2.85 | 21 |
| 1993 | 2.86 | 24 |
| 1992 | 2.87 | 22 |
| 1991 | 2.89 | 24 |