| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 17.357 | 14 |
| 2015 | 17.59 | 17 |
| 2014 | 16.409 | 24 |
| 2013 | 15.995 | 25 |
| 2012 | 17.23 | 22 |
| 2011 | 17.754 | 18 |
| 2010 | 19.2 | 18 |
| 2009 | 18.764 | 23 |
| 2008 | 17.049 | 31 |
| 2007 | 17.516 | 26 |
| 2006 | 16.525 | 35 |
| 2005 | 17.984 | 27 |
| 2004 | 18.633 | 29 |
| 2003 | 20.829 | 24 |
| 2002 | 21.137 | 28 |
| 2001 | 26.688 | 18 |
| 2000 | 31.566 | 16 |
| 1999 | 38.848 | 16 |
| 1998 | 48.485 | 11 |
| 1997 | 54.228 | 8 |
| 1996 | 66.358 | 7 |
| 1995 | 111.858 | 6 |