| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 69.158 | 35 |
| 2015 | 69.367 | 46 |
| 2014 | 69.647 | 48 |
| 2013 | 71.014 | 40 |
| 2012 | 73.974 | 25 |
| 2011 | 75.336 | 25 |
| 2010 | 75.175 | 26 |
| 2009 | 74.769 | 27 |
| 2008 | 73.649 | 27 |
| 2007 | 75.441 | 23 |
| 2006 | 74.593 | 23 |
| 2005 | 74.207 | 23 |
| 2004 | 73.478 | 23 |
| 2003 | 73.058 | 23 |
| 2002 | 74.245 | 19 |
| 2001 | 73.229 | 21 |
| 2000 | 71.652 | 26 |
| 1999 | 70.954 | 26 |
| 1998 | 71.761 | 21 |
| 1997 | 71.666 | 22 |
| 1996 | 70.355 | 22 |
| 1995 | 70.272 | 21 |
| 1994 | 70.637 | 18 |
| 1993 | 70.082 | 17 |
| 1992 | 70.809 | 15 |
| 1991 | 69.923 | 15 |
| 1990 | 71.006 | 10 |
| 1989 | 69.682 | 7 |
| 1988 | 69.782 | 4 |
| 1987 | 68.174 | 10 |
| 1986 | 67.731 | 9 |