| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 84.57 | 1 |
| 2015 | 84.89 | 1 |
| 2014 | 85.22 | 1 |
| 2013 | 85.44 | 1 |
| 2012 | 85.58 | 1 |
| 2011 | 85.6 | 1 |
| 2010 | 85.63 | 2 |
| 2009 | 84.89 | 1 |
| 2008 | 83.44 | 3 |
| 2007 | 82.88 | 2 |
| 2006 | 83.84 | 2 |
| 2005 | 84.37 | 2 |
| 2004 | 83.44 | 2 |
| 2003 | 82.47 | 3 |
| 2002 | 82.25 | 5 |
| 2001 | 82.01 | 5 |
| 2000 | 81.84 | 5 |
| 1999 | 84.2 | 4 |
| 1998 | 84.01 | 2 |
| 1997 | 84.54 | 4 |
| 1996 | 85.11 | 4 |
| 1995 | 84.46 | 4 |
| 1994 | 83.07 | 5 |
| 1993 | 84.84 | 4 |
| 1992 | 83.79 | 4 |
| 1991 | 82.36 | 5 |