| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 3.311 | 60 |
| 2015 | 0.57 | 151 |
| 2014 | -.146 | 158 |
| 2013 | 2.509 | 113 |
| 2012 | 3.824 | 94 |
| 2011 | 3.178 | 107 |
| 2010 | 3.318 | 105 |
| 2009 | 0.411 | 103 |
| 2008 | 4.29 | 86 |
| 2007 | -6.945 | 169 |
| 2006 | 8.842 | 40 |
| 2005 | 7.251 | 60 |
| 2004 | 11.386 | 16 |
| 2003 | 5.172 | 65 |
| 2002 | 6.278 | 37 |
| 2001 | 7.085 | 24 |
| 2000 | 17.01 | 2 |
| 1999 | 9.747 | 11 |
| 1998 | 14.114 | 3 |
| 1997 | 16.008 | 5 |
| 1996 | 11.877 | 8 |
| 1995 | 15.325 | 4 |
| 1994 | 20.759 | 3 |
| 1993 | 7.855 | 20 |
| 1992 | 11.892 | 9 |
| 1991 | 2.694 | 62 |
| 1990 | 3.502 | 61 |
| 1989 | 6.502 | 25 |
| 1988 | 6.358 | 30 |
| 1987 | -3.139 | 104 |
| 1986 | 2.333 | 75 |