| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | -.446 | 127 |
| 2015 | 1.381 | 132 |
| 2014 | 2.258 | 119 |
| 2013 | 4.589 | 72 |
| 2012 | 4.546 | 77 |
| 2011 | 5.934 | 59 |
| 2010 | 10.797 | 13 |
| 2009 | -12.634 | 173 |
| 2008 | 6.897 | 48 |
| 2007 | 5.083 | 116 |
| 2006 | 6.505 | 78 |
| 2005 | 2.214 | 138 |
| 2004 | 15.593 | 6 |
| 2003 | 3.898 | 90 |
| 2002 | 6.902 | 32 |
| 2001 | 1.532 | 124 |
| 2000 | 7.606 | 29 |
| 1999 | 5.499 | 41 |
| 1998 | 5.79 | 36 |
| 1997 | 13.816 | 9 |
| 1996 | 7.047 | 28 |
| 1995 | -11.595 | 132 |
| 1994 | -.433 | 106 |
| 1993 | 2.531 | 69 |
| 1992 | -.575 | 104 |
| 1991 | 3.077 | 56 |
| 1990 | 0.806 | 82 |
| 1989 | -2.057 | 98 |
| 1988 | -11.032 | 112 |
| 1987 | -1.483 | 96 |
| 1986 | -1.739 | 91 |