| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 64.7 | 159 |
| 2015 | 64.91 | 159 |
| 2014 | 65.1 | 160 |
| 2013 | 63.54 | 164 |
| 2012 | 63.41 | 166 |
| 2011 | 62.56 | 170 |
| 2010 | 63.64 | 167 |
| 2009 | 63.57 | 168 |
| 2008 | 63.72 | 167 |
| 2007 | 63.48 | 167 |
| 2006 | 63.23 | 170 |
| 2005 | 62.13 | 174 |
| 2004 | 63.6 | 172 |
| 2003 | 64.2 | 170 |
| 2002 | 64.36 | 171 |
| 2001 | 69.57 | 140 |
| 2000 | 71.07 | 129 |
| 1999 | 71.79 | 125 |
| 1998 | 72.07 | 122 |
| 1997 | 72.9 | 117 |
| 1996 | 71.76 | 128 |
| 1995 | 71.98 | 127 |
| 1994 | 70.39 | 143 |
| 1993 | 69.01 | 155 |
| 1992 | 67.89 | 164 |
| 1991 | 67.62 | 166 |
| 1990 | 67.07 | 170 |