| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 42.86 | 3 |
| 2015 | 42.36 | 4 |
| 2014 | 42.16 | 3 |
| 2013 | 46.43 | 3 |
| 2012 | 53.94 | 2 |
| 2011 | 54.5 | 2 |
| 2010 | 54.2 | 2 |
| 2009 | 54.63 | 3 |
| 2008 | 55.72 | 4 |
| 2007 | 54.28 | 4 |
| 2006 | 55.18 | 3 |
| 2005 | 54.94 | 2 |
| 2004 | 55.71 | 2 |
| 2003 | 56.92 | 2 |
| 2002 | 53.62 | 3 |
| 2001 | 53.41 | 3 |
| 2000 | 52.1 | 4 |
| 1999 | 51.73 | 6 |
| 1998 | 55.68 | 4 |
| 1997 | 54.78 | 4 |
| 1996 | 51.72 | 6 |
| 1995 | 46.51 | 12 |
| 1994 | 45.04 | 12 |
| 1993 | 46.4 | 15 |
| 1992 | 46.87 | 12 |
| 1991 | 45.97 | 10 |
| 1990 | 49.28 | 9 |
| 1989 | 47.7 | 9 |
| 1988 | 48.94 | 9 |
| 1987 | 47.31 | 9 |
| 1986 | 50.18 | 6 |