| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 61.69 | 144 |
| 2015 | 62.01 | 141 |
| 2014 | 62.22 | 136 |
| 2013 | 63.66 | 127 |
| 2012 | 64.31 | 121 |
| 2011 | 64.56 | 118 |
| 2010 | 64.27 | 121 |
| 2009 | 64.21 | 120 |
| 2008 | 65.75 | 115 |
| 2007 | 65.67 | 112 |
| 2006 | 64.38 | 122 |
| 2005 | 63.64 | 126 |
| 2004 | 63.1 | 129 |
| 2003 | 64.94 | 118 |
| 2002 | 65.01 | 120 |
| 2001 | 65.78 | 114 |
| 2000 | 65.67 | 118 |
| 1999 | 66 | 113 |
| 1998 | 65.4 | 121 |
| 1997 | 65.98 | 116 |
| 1996 | 66.11 | 114 |
| 1995 | 67.91 | 103 |
| 1994 | 68.01 | 104 |
| 1993 | 66.91 | 114 |
| 1992 | 67.55 | 113 |
| 1991 | 67.61 | 114 |