| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 1.207 | 113 |
| 2015 | -1.207 | 159 |
| 2014 | 4.321 | 77 |
| 2013 | 2.266 | 121 |
| 2012 | -1.875 | 170 |
| 2011 | 0.077 | 167 |
| 2010 | 1.791 | 137 |
| 2009 | 0.435 | 101 |
| 2008 | 5.667 | 60 |
| 2007 | 5.691 | 104 |
| 2006 | 1.053 | 152 |
| 2005 | -2.477 | 158 |
| 2004 | 0.307 | 158 |
| 2003 | 7.422 | 32 |
| 2002 | 0.422 | 142 |
| 2001 | 2.104 | 115 |
| 2000 | 2.179 | 129 |
| 1999 | 3.951 | 74 |
| 1998 | 3.156 | 93 |
| 1997 | 2.891 | 104 |
| 1996 | 2.823 | 98 |
| 1995 | 2.648 | 83 |
| 1994 | 3.978 | 59 |
| 1993 | 2.32 | 74 |
| 1992 | 2.467 | 74 |
| 1991 | 2.836 | 59 |
| 1990 | 5.421 | 38 |
| 1989 | 2.087 | 74 |
| 1988 | 5.699 | 34 |
| 1987 | 7.482 | 23 |
| 1986 | 6.02 | 25 |