| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 69.2 | 129 |
| 2015 | 69.37 | 128 |
| 2014 | 69.52 | 127 |
| 2013 | 69.61 | 126 |
| 2012 | 69.43 | 127 |
| 2011 | 69.35 | 130 |
| 2010 | 69.66 | 128 |
| 2009 | 69.42 | 130 |
| 2008 | 70.13 | 127 |
| 2007 | 70.17 | 126 |
| 2006 | 69.72 | 127 |
| 2005 | 69.29 | 130 |
| 2004 | 69.2 | 134 |
| 2003 | 68.61 | 140 |
| 2002 | 68.9 | 140 |
| 2001 | 69.85 | 136 |
| 2000 | 70.09 | 137 |
| 1999 | 70.13 | 137 |
| 1998 | 70.52 | 136 |
| 1997 | 71.15 | 133 |
| 1996 | 71.79 | 127 |
| 1995 | 72.95 | 121 |
| 1994 | 73.38 | 120 |
| 1993 | 73.67 | 116 |
| 1992 | 72.05 | 133 |
| 1991 | 72.36 | 133 |
| 1990 | 72.28 | 136 |