| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 39.76 | 6 |
| 2015 | 42.98 | 3 |
| 2014 | 39.26 | 8 |
| 2013 | 39.83 | 8 |
| 2012 | 40.58 | 9 |
| 2011 | 40.35 | 7 |
| 2010 | 40.45 | 7 |
| 2009 | 40.53 | 7 |
| 2008 | 40.59 | 8 |
| 2007 | 37.34 | 8 |
| 2006 | 44.34 | 6 |
| 2005 | 44.5 | 8 |
| 2004 | 45.44 | 5 |
| 2003 | 46.36 | 5 |
| 2002 | 45.79 | 6 |
| 2001 | 46.44 | 5 |
| 2000 | 48.06 | 5 |
| 1999 | 47.89 | 8 |
| 1998 | 48.03 | 7 |
| 1997 | 47.73 | 8 |
| 1996 | 57.22 | 3 |
| 1995 | 48.14 | 10 |
| 1994 | 46.78 | 11 |
| 1993 | 52.62 | 6 |
| 1992 | 53.53 | 3 |
| 1991 | 54.31 | 4 |
| 1990 | 55.88 | 5 |
| 1989 | 53.68 | 4 |
| 1988 | 54.25 | 4 |
| 1987 | 55.11 | 4 |
| 1986 | 58.52 | 2 |