| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | -2.591 | 135 |
| 2015 | -2.766 | 163 |
| 2014 | 0.964 | 147 |
| 2013 | 2.686 | 107 |
| 2012 | 2.882 | 112 |
| 2011 | 3.447 | 99 |
| 2010 | 5.856 | 65 |
| 2009 | 1.971 | 82 |
| 2008 | 4.801 | 77 |
| 2007 | 5.873 | 100 |
| 2006 | 4.255 | 118 |
| 2005 | 3.591 | 119 |
| 2004 | 5.021 | 91 |
| 2003 | 1.039 | 135 |
| 2002 | 3.12 | 95 |
| 2001 | 2.064 | 116 |
| 2000 | 1.64 | 134 |
| 1999 | 2.045 | 109 |
| 1998 | 1.595 | 121 |
| 1997 | 2.443 | 114 |
| 1996 | 5.835 | 43 |
| 1995 | 2.882 | 77 |
| 1994 | 3.9 | 60 |
| 1993 | 3.085 | 64 |
| 1992 | 0.911 | 96 |
| 1989 | 3.695 | 59 |
| 1988 | 1.659 | 83 |
| 1987 | 3.306 | 67 |
| 1986 | 9.04 | 15 |