| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 4.605 | 41 |
| 2015 | 5.913 | 30 |
| 2014 | 4.626 | 67 |
| 2013 | 3.171 | 97 |
| 2012 | 6.472 | 47 |
| 2011 | 11.299 | 7 |
| 2010 | 5.37 | 76 |
| 2009 | 2.106 | 75 |
| 2008 | 6.905 | 47 |
| 2007 | 12.402 | 21 |
| 2006 | 9.192 | 35 |
| 2005 | 8.335 | 40 |
| 2004 | 8.605 | 39 |
| 2003 | 3.417 | 100 |
| 2002 | 2.166 | 115 |
| 2001 | 2.722 | 102 |
| 2000 | 5.004 | 72 |
| 1999 | 2.352 | 100 |
| 1998 | 7.816 | 20 |
| 1997 | 7.331 | 36 |
| 1996 | 4.46 | 65 |
| 1995 | 1.666 | 95 |
| 1994 | 2.431 | 79 |
| 1993 | 2.362 | 73 |
| 1992 | 8.168 | 17 |
| 1991 | 9.702 | 7 |
| 1990 | 7.427 | 22 |
| 1989 | 1.898 | 77 |
| 1988 | -10.475 | 111 |
| 1987 | -3.036 | 102 |
| 1986 | 2.967 | 61 |