| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 71.48 | 4 |
| 2015 | 71.54 | 5 |
| 2014 | 71.47 | 5 |
| 2013 | 71.17 | 5 |
| 2012 | 72.3 | 5 |
| 2011 | 71.47 | 5 |
| 2010 | 72.41 | 5 |
| 2009 | 73.31 | 4 |
| 2008 | 73.16 | 3 |
| 2007 | 72.51 | 5 |
| 2006 | 73.15 | 5 |
| 2005 | 73.78 | 3 |
| 2004 | 75.75 | 2 |
| 2003 | 75.11 | 3 |
| 2002 | 76.26 | 2 |
| 2001 | 75.7 | 2 |
| 2000 | 78.59 | 1 |
| 1999 | 79.47 | 1 |
| 1998 | 78.2 | 1 |
| 1997 | 77.78 | 1 |
| 1996 | 77.47 | 3 |
| 1995 | 80.01 | 1 |
| 1994 | 79.2 | 1 |
| 1993 | 78.36 | 2 |
| 1992 | 77.53 | 2 |
| 1991 | 77.68 | 3 |