| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 64.44 | 84 |
| 2015 | 64.24 | 84 |
| 2014 | 64.04 | 87 |
| 2013 | 63.82 | 86 |
| 2012 | 63.58 | 90 |
| 2011 | 63.33 | 92 |
| 2010 | 63.09 | 93 |
| 2009 | 62.83 | 96 |
| 2008 | 62.41 | 99 |
| 2007 | 62.12 | 101 |
| 2006 | 61.86 | 101 |
| 2005 | 61.46 | 101 |
| 2004 | 61.09 | 101 |
| 2003 | 60.73 | 105 |
| 2002 | 60.38 | 107 |
| 2001 | 60.03 | 113 |
| 2000 | 59.69 | 117 |
| 1999 | 59.38 | 122 |
| 1998 | 59.09 | 127 |
| 1997 | 58.8 | 128 |
| 1996 | 58.53 | 130 |
| 1995 | 58.26 | 133 |
| 1994 | 58.28 | 132 |
| 1993 | 58.3 | 126 |
| 1992 | 58.31 | 125 |
| 1991 | 58.33 | 126 |
| 1990 | 58.35 | 125 |