| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 64.15 | 163 |
| 2015 | 63.99 | 164 |
| 2014 | 63.82 | 164 |
| 2013 | 63.68 | 163 |
| 2012 | 63.52 | 164 |
| 2011 | 63.35 | 166 |
| 2010 | 63.17 | 169 |
| 2009 | 62.96 | 169 |
| 2008 | 62.75 | 172 |
| 2007 | 62.52 | 171 |
| 2006 | 62.3 | 173 |
| 2005 | 62.09 | 175 |
| 2004 | 61.88 | 176 |
| 2003 | 63.31 | 173 |
| 2002 | 64.62 | 169 |
| 2001 | 65.84 | 161 |
| 2000 | 66.97 | 152 |
| 1999 | 68.01 | 151 |
| 1998 | 68.99 | 146 |
| 1997 | 69.9 | 141 |
| 1996 | 70.75 | 138 |
| 1995 | 71.54 | 134 |
| 1994 | 72.28 | 126 |
| 1993 | 72.97 | 126 |
| 1992 | 73.63 | 120 |
| 1991 | 74.24 | 120 |
| 1990 | 74.82 | 116 |