| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 66.09 | 42 |
| 2015 | 65.33 | 44 |
| 2014 | 64.05 | 47 |
| 2013 | 66.04 | 42 |
| 2012 | 65.84 | 42 |
| 2011 | 65.57 | 42 |
| 2010 | 57.99 | 90 |
| 2009 | 61.24 | 65 |
| 2008 | 62.91 | 60 |
| 2007 | 63.38 | 54 |
| 2006 | 54.9 | 112 |
| 2005 | 57.99 | 89 |
| 2004 | 58.59 | 75 |
| 2003 | 56.7 | 95 |
| 2002 | 54.87 | 108 |
| 2001 | 55.21 | 106 |
| 2000 | 53.22 | 121 |
| 1999 | 50.8 | 132 |
| 1998 | 52.09 | 127 |
| 1997 | 51.33 | 129 |
| 1996 | 50.91 | 133 |
| 1995 | 50.45 | 134 |
| 1994 | 50.14 | 141 |
| 1993 | 48.87 | 145 |
| 1992 | 47.54 | 150 |
| 1991 | 45.46 | 161 |