| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 70.37 | 6 |
| 2015 | 70.52 | 6 |
| 2014 | 70.53 | 6 |
| 2013 | 70.64 | 6 |
| 2012 | 72.73 | 3 |
| 2011 | 78.22 | 1 |
| 2010 | 78.18 | 1 |
| 2009 | 75.84 | 1 |
| 2008 | 73.97 | 2 |
| 2007 | 76.81 | 1 |
| 2006 | 76.35 | 2 |
| 2005 | 75.92 | 2 |
| 2004 | 75.46 | 3 |
| 2003 | 75 | 4 |
| 2002 | 73.94 | 4 |
| 2001 | 72.57 | 4 |
| 2000 | 70.63 | 8 |
| 1999 | 66.84 | 11 |
| 1998 | 67.05 | 11 |
| 1997 | 68.79 | 11 |
| 1996 | 70.1 | 10 |
| 1995 | 70.6 | 10 |
| 1994 | 70.62 | 9 |
| 1993 | 72.18 | 9 |
| 1992 | 72 | 9 |
| 1991 | 71.38 | 9 |