| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 15.7 | 22 |
| 2015 | 15.933 | 26 |
| 2014 | 15.833 | 27 |
| 2013 | 14.825 | 34 |
| 2012 | 14.32 | 36 |
| 2011 | 14.35 | 37 |
| 2010 | 15.13 | 34 |
| 2009 | 15.38 | 38 |
| 2008 | 14.378 | 50 |
| 2007 | 14.03 | 53 |
| 2006 | 15.615 | 42 |
| 2005 | 16.375 | 44 |
| 2004 | 15.375 | 49 |
| 2003 | 15 | 58 |
| 2002 | 15.275 | 63 |
| 2001 | 15.33 | 68 |
| 2000 | 15.33 | 70 |
| 1999 | 15.165 | 75 |
| 1998 | 15 | 78 |
| 1997 | 15 | 76 |
| 1996 | 15 | 78 |
| 1995 | 15 | 79 |