| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 63.55 | 89 |
| 2015 | 63.33 | 91 |
| 2014 | 63.04 | 93 |
| 2013 | 62.91 | 94 |
| 2012 | 62.7 | 99 |
| 2011 | 63.02 | 94 |
| 2010 | 61.58 | 101 |
| 2009 | 59.29 | 125 |
| 2008 | 58.57 | 127 |
| 2007 | 58.11 | 130 |
| 2006 | 57.84 | 130 |
| 2005 | 57.62 | 132 |
| 2004 | 57.43 | 132 |
| 2003 | 57.24 | 133 |
| 2002 | 57.08 | 135 |
| 2001 | 56.85 | 137 |
| 2000 | 57.01 | 136 |
| 1999 | 57.3 | 136 |
| 1998 | 57.62 | 134 |
| 1997 | 57.98 | 132 |
| 1996 | 58.37 | 131 |
| 1995 | 58.74 | 129 |
| 1994 | 59.07 | 121 |
| 1993 | 59.31 | 117 |
| 1992 | 59.67 | 114 |
| 1991 | 60.07 | 108 |
| 1990 | 60.17 | 105 |