| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 64.1 | 124 |
| 2015 | 63.99 | 127 |
| 2014 | 63.93 | 125 |
| 2013 | 64.36 | 120 |
| 2012 | 62.31 | 135 |
| 2011 | 63.58 | 127 |
| 2010 | 64.36 | 119 |
| 2009 | 63.73 | 124 |
| 2008 | 63.44 | 133 |
| 2007 | 62.33 | 140 |
| 2006 | 63.7 | 128 |
| 2005 | 62.35 | 138 |
| 2004 | 61.33 | 145 |
| 2003 | 58.33 | 158 |
| 2002 | 57.48 | 161 |
| 2001 | 57.07 | 162 |
| 2000 | 55.98 | 168 |
| 1999 | 58.91 | 159 |
| 1998 | 59.63 | 158 |
| 1997 | 60.36 | 156 |
| 1996 | 58.41 | 165 |
| 1995 | 58.93 | 164 |
| 1994 | 60.74 | 152 |
| 1993 | 61.05 | 153 |
| 1992 | 60.72 | 158 |
| 1991 | 61.73 | 156 |