| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 1.73 | 38 |
| 2015 | 1.76 | 39 |
| 2014 | 1.79 | 39 |
| 2013 | 1.82 | 39 |
| 2012 | 1.85 | 39 |
| 2011 | 1.87 | 43 |
| 2010 | 1.9 | 46 |
| 2009 | 1.92 | 46 |
| 2008 | 1.94 | 47 |
| 2007 | 1.95 | 48 |
| 2006 | 1.96 | 48 |
| 2005 | 1.97 | 44 |
| 2004 | 1.97 | 44 |
| 2003 | 1.98 | 45 |
| 2002 | 1.99 | 42 |
| 2001 | 2.01 | 40 |
| 2000 | 2.02 | 38 |
| 1999 | 2.03 | 43 |
| 1998 | 2.05 | 44 |
| 1997 | 2.23 | 39 |
| 1996 | 2.44 | 30 |
| 1995 | 2.43 | 36 |
| 1994 | 2.41 | 35 |
| 1993 | 2.4 | 39 |
| 1992 | 2.39 | 38 |
| 1991 | 2.38 | 40 |
| 1990 | 2.37 | 35 |
| 1989 | 2.35 | 37 |
| 1988 | 2.34 | 43 |
| 1987 | 2.33 | 47 |
| 1986 | 2.02 | 54 |