| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 65.819 | 44 |
| 2015 | 63.539 | 70 |
| 2014 | 60.319 | 91 |
| 2013 | 58.714 | 98 |
| 2012 | 57.64 | 100 |
| 2011 | 57.084 | 99 |
| 2010 | 59.173 | 97 |
| 2009 | 60.128 | 94 |
| 2008 | 53.943 | 108 |
| 2007 | 56.697 | 99 |
| 2006 | 53.946 | 108 |
| 2005 | 55.847 | 100 |
| 2004 | 59.001 | 83 |
| 2003 | 60.817 | 77 |
| 2002 | 60.586 | 77 |
| 2001 | 58.348 | 87 |
| 2000 | 56.555 | 89 |
| 1999 | 63.564 | 52 |
| 1998 | 65.444 | 44 |
| 1997 | 61.343 | 55 |
| 1996 | 61.737 | 54 |
| 1995 | 63.81 | 44 |
| 1994 | 65.02 | 33 |
| 1993 | 65.621 | 27 |
| 1992 | 65.311 | 27 |
| 1991 | 64.701 | 27 |
| 1990 | 63.415 | 30 |
| 1989 | 63.757 | 20 |
| 1988 | 65.107 | 14 |
| 1987 | 63.375 | 21 |
| 1986 | 62.6 | 19 |