| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 75.39 | 8 |
| 2015 | 75.43 | 8 |
| 2014 | 75.46 | 8 |
| 2013 | 75.46 | 8 |
| 2012 | 77.38 | 6 |
| 2011 | 82.14 | 4 |
| 2010 | 81.38 | 4 |
| 2009 | 77.89 | 8 |
| 2008 | 73.39 | 13 |
| 2007 | 75.79 | 10 |
| 2006 | 75.28 | 10 |
| 2005 | 74.89 | 9 |
| 2004 | 74.49 | 11 |
| 2003 | 76.81 | 9 |
| 2002 | 78.71 | 6 |
| 2001 | 80.29 | 4 |
| 2000 | 76.87 | 8 |
| 1999 | 76.68 | 8 |
| 1998 | 74.86 | 9 |
| 1997 | 75.87 | 8 |
| 1996 | 76.57 | 8 |
| 1995 | 76.42 | 8 |
| 1994 | 76.22 | 8 |
| 1993 | 76.98 | 8 |
| 1992 | 77.07 | 8 |
| 1991 | 76.84 | 8 |