| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 63.465 | 55 |
| 2015 | 63.699 | 69 |
| 2014 | 62.131 | 76 |
| 2013 | 62.073 | 82 |
| 2012 | 60.128 | 91 |
| 2011 | 60.326 | 86 |
| 2010 | 61.453 | 84 |
| 2009 | 62.187 | 82 |
| 2008 | 60.153 | 84 |
| 2007 | 60.58 | 83 |
| 2006 | 60.376 | 80 |
| 2005 | 61.457 | 74 |
| 2004 | 61.046 | 74 |
| 2003 | 62.702 | 70 |
| 2002 | 63.547 | 63 |
| 2001 | 63.309 | 64 |
| 2000 | 61.607 | 69 |
| 1999 | 61.983 | 58 |
| 1998 | 61.991 | 54 |
| 1997 | 61.055 | 57 |
| 1996 | 60.592 | 60 |
| 1995 | 63.162 | 46 |
| 1994 | 64.705 | 34 |
| 1993 | 63.653 | 36 |
| 1992 | 65.217 | 28 |
| 1991 | 64.443 | 29 |
| 1990 | 63.734 | 29 |
| 1989 | 62.874 | 24 |
| 1988 | 59.994 | 24 |
| 1987 | 52.326 | 46 |
| 1986 | 54.792 | 38 |