| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2015 | 73.8 | 23 |
| 2014 | 73.577 | 28 |
| 2013 | 73.229 | 27 |
| 2012 | 73.144 | 32 |
| 2011 | 72.664 | 31 |
| 2010 | 73.014 | 30 |
| 2009 | 73.052 | 32 |
| 2008 | 71.926 | 34 |
| 2007 | 72.28 | 31 |
| 2006 | 72.175 | 31 |
| 2005 | 72.337 | 30 |
| 2004 | 72.316 | 27 |
| 2003 | 72.168 | 26 |
| 2002 | 71.669 | 24 |
| 2001 | 71.841 | 25 |
| 2000 | 72.435 | 22 |
| 1999 | 71.665 | 21 |
| 1998 | 71.295 | 22 |
| 1997 | 70.533 | 27 |
| 1996 | 69.784 | 26 |
| 1995 | 68.464 | 25 |
| 1994 | 67.853 | 23 |
| 1993 | 68.579 | 21 |
| 1992 | 67.942 | 23 |
| 1991 | 66.978 | 21 |
| 1990 | 66.456 | 20 |