| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 66.88 | 149 |
| 2015 | 66.9 | 149 |
| 2014 | 66.86 | 149 |
| 2013 | 66.93 | 149 |
| 2012 | 66.97 | 150 |
| 2011 | 67.08 | 149 |
| 2010 | 67.32 | 149 |
| 2009 | 67.85 | 146 |
| 2008 | 68.25 | 145 |
| 2007 | 68.83 | 136 |
| 2006 | 69.38 | 132 |
| 2005 | 69.88 | 126 |
| 2004 | 70.15 | 127 |
| 2003 | 70.38 | 129 |
| 2002 | 70.55 | 128 |
| 2001 | 70.59 | 131 |
| 2000 | 70.63 | 132 |
| 1999 | 70.68 | 134 |
| 1998 | 70.88 | 133 |
| 1997 | 71.03 | 135 |
| 1996 | 71.04 | 135 |
| 1995 | 71.56 | 133 |
| 1994 | 71.86 | 130 |
| 1993 | 72.04 | 133 |
| 1992 | 72.15 | 132 |
| 1991 | 72.26 | 135 |
| 1990 | 72.43 | 135 |