| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 37.23 | 8 |
| 2015 | 39.23 | 8 |
| 2014 | 41.92 | 5 |
| 2013 | 44.9 | 4 |
| 2012 | 47.98 | 5 |
| 2011 | 44.67 | 5 |
| 2010 | 44.74 | 6 |
| 2009 | 48.64 | 4 |
| 2008 | 48.43 | 5 |
| 2007 | 45.46 | 5 |
| 2006 | 45.88 | 5 |
| 2005 | 44.7 | 7 |
| 2004 | 42.3 | 7 |
| 2003 | 40.12 | 10 |
| 2002 | 41.66 | 10 |
| 2001 | 45.64 | 6 |
| 2000 | 47.76 | 6 |
| 1999 | 48.63 | 7 |
| 1998 | 52.49 | 6 |
| 1997 | 57.72 | 3 |
| 1996 | 54.3 | 4 |
| 1995 | 55.04 | 6 |
| 1994 | 55.66 | 4 |
| 1993 | 62.37 | 1 |
| 1992 | 65.97 | 1 |
| 1991 | 61.36 | 1 |
| 1990 | 52.04 | 7 |
| 1989 | 51.21 | 5 |
| 1988 | 51.57 | 5 |
| 1987 | 51.95 | 5 |
| 1986 | 53.92 | 4 |