| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 79.167 | 8 |
| 2015 | 78.76 | 13 |
| 2014 | 78.7 | 13 |
| 2013 | 78.534 | 17 |
| 2012 | 78.489 | 17 |
| 2011 | 78.327 | 19 |
| 2010 | 78.616 | 18 |
| 2009 | 78.492 | 17 |
| 2008 | 77.638 | 15 |
| 2007 | 77.137 | 15 |
| 2006 | 77.05 | 16 |
| 2005 | 76.621 | 17 |
| 2004 | 76.126 | 18 |
| 2003 | 75.879 | 17 |
| 2002 | 75.21 | 17 |
| 2001 | 74.746 | 18 |
| 2000 | 74.316 | 17 |
| 1999 | 74.151 | 16 |
| 1998 | 73.741 | 16 |
| 1997 | 73.655 | 18 |
| 1996 | 73.398 | 15 |
| 1995 | 72.749 | 15 |
| 1994 | 72.881 | 13 |
| 1993 | 72.268 | 11 |
| 1992 | 70.894 | 14 |
| 1991 | 70.395 | 13 |
| 1990 | 69.585 | 12 |
| 1989 | 69.589 | 9 |
| 1988 | 69.167 | 7 |
| 1987 | 68.843 | 8 |
| 1986 | 68.248 | 8 |