| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 62.24 | 138 |
| 2015 | 62.23 | 137 |
| 2014 | 62.1 | 139 |
| 2013 | 61.76 | 142 |
| 2012 | 62.34 | 134 |
| 2011 | 63.2 | 129 |
| 2010 | 63.32 | 128 |
| 2009 | 65.56 | 108 |
| 2008 | 68.98 | 94 |
| 2007 | 68.61 | 97 |
| 2006 | 69.18 | 90 |
| 2005 | 68.27 | 96 |
| 2004 | 68.32 | 93 |
| 2003 | 67.94 | 91 |
| 2002 | 69.01 | 87 |
| 2001 | 68.66 | 96 |
| 2000 | 68.82 | 92 |
| 1999 | 69.34 | 87 |
| 1998 | 68.97 | 94 |
| 1997 | 69.84 | 90 |
| 1996 | 68.82 | 99 |
| 1995 | 68.92 | 96 |
| 1994 | 66.23 | 115 |
| 1993 | 65.57 | 123 |
| 1992 | 67.96 | 107 |
| 1991 | 68.31 | 109 |