| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 1.592 | 102 |
| 2015 | 1.299 | 134 |
| 2014 | 0.994 | 146 |
| 2013 | 0.62 | 146 |
| 2012 | 1.023 | 140 |
| 2011 | 2.279 | 130 |
| 2010 | 2.184 | 124 |
| 2009 | -2.021 | 133 |
| 2008 | 1.306 | 142 |
| 2007 | 2.489 | 149 |
| 2006 | 2.574 | 140 |
| 2005 | 1.628 | 146 |
| 2004 | 2.8 | 132 |
| 2003 | 0.954 | 139 |
| 2002 | 1.172 | 132 |
| 2001 | 1.928 | 120 |
| 2000 | 3.586 | 108 |
| 1999 | 3.294 | 91 |
| 1998 | 3.601 | 87 |
| 1997 | 2.707 | 109 |
| 1996 | 1.843 | 117 |
| 1995 | 1.989 | 92 |
| 1994 | 2.46 | 78 |
| 1993 | 0.612 | 93 |
| 1992 | 1.764 | 84 |
| 1991 | 1.503 | 77 |
| 1990 | 2.654 | 69 |
| 1989 | 4.796 | 40 |
| 1988 | 4.39 | 50 |
| 1987 | 2.463 | 76 |
| 1986 | 2.337 | 74 |