| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 69.83 | 126 |
| 2015 | 69.73 | 126 |
| 2014 | 69.62 | 126 |
| 2013 | 69.55 | 127 |
| 2012 | 69.49 | 126 |
| 2011 | 69.42 | 127 |
| 2010 | 69.34 | 130 |
| 2009 | 69.2 | 134 |
| 2008 | 69.13 | 135 |
| 2007 | 69.15 | 132 |
| 2006 | 68.97 | 133 |
| 2005 | 68.91 | 134 |
| 2004 | 68.68 | 138 |
| 2003 | 68.97 | 137 |
| 2002 | 69.25 | 137 |
| 2001 | 69.51 | 141 |
| 2000 | 69.76 | 139 |
| 1999 | 69.97 | 138 |
| 1998 | 70.15 | 138 |
| 1997 | 70.32 | 139 |
| 1996 | 70.48 | 140 |
| 1995 | 70.65 | 141 |
| 1994 | 70.85 | 140 |
| 1993 | 71.04 | 142 |
| 1992 | 71.23 | 141 |
| 1991 | 71.43 | 143 |
| 1990 | 71.62 | 145 |