| 时间 | 值 | 世界排名 |
|---|---|---|
| 2016 | 5.9 | 21 |
| 2015 | 5.7 | 44 |
| 2014 | 5.3 | 47 |
| 2013 | 5.6 | 47 |
| 2012 | 5.5 | 46 |
| 2011 | 5.2 | 49 |
| 2010 | 5.8 | 47 |
| 2009 | 6 | 55 |
| 2008 | 4.6 | 46 |
| 2007 | 5 | 51 |
| 2006 | 4.9 | 49 |
| 2005 | 4.9 | 39 |
| 2004 | 5.6 | 31 |
| 2003 | 6.1 | 31 |
| 2002 | 5.8 | 30 |
| 2001 | 5.6 | 22 |
| 2000 | 5.2 | 25 |
| 1999 | 6.1 | 21 |
| 1998 | 6.7 | 8 |
| 1997 | 5.2 | 24 |
| 1996 | 5.6 | 18 |
| 1995 | 5.3 | 19 |
| 1994 | 5.9 | 19 |
| 1993 | 5.8 | 16 |
| 1992 | 5.7 | 15 |
| 1991 | 5.3 | 20 |
| 1990 | 4.7 | 21 |
| 1989 | 4.3 | 26 |
| 1988 | 4.1 | 27 |
| 1987 | 4.8 | 28 |
| 1986 | 5.3 | 23 |