| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 65.92 | 152 |
| 2015 | 66.03 | 153 |
| 2014 | 66.07 | 154 |
| 2013 | 67.28 | 147 |
| 2012 | 67.66 | 145 |
| 2011 | 67.65 | 144 |
| 2010 | 67.65 | 144 |
| 2009 | 67.95 | 144 |
| 2008 | 68.42 | 142 |
| 2007 | 68.77 | 137 |
| 2006 | 67.75 | 147 |
| 2005 | 67.31 | 148 |
| 2004 | 66.99 | 150 |
| 2003 | 68.46 | 141 |
| 2002 | 68.51 | 142 |
| 2001 | 68.46 | 146 |
| 2000 | 68.95 | 143 |
| 1999 | 69.22 | 143 |
| 1998 | 69.18 | 145 |
| 1997 | 69.5 | 144 |
| 1996 | 69.85 | 143 |
| 1995 | 70.7 | 140 |
| 1994 | 70.27 | 144 |
| 1993 | 69.76 | 151 |
| 1992 | 69.97 | 149 |
| 1991 | 69.92 | 156 |
| 1990 | 69.89 | 157 |