| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 2.09 | 76 |
| 2015 | 2.99 | 58 |
| 2014 | 1.59 | 105 |
| 2013 | 0.39 | 140 |
| 2012 | -1.02 | 161 |
| 2011 | 1.89 | 115 |
| 2010 | 5.09 | 45 |
| 2009 | -5.99 | 174 |
| 2008 | -1.33 | 173 |
| 2007 | 2.64 | 131 |
| 2006 | 4.1 | 93 |
| 2005 | 2.41 | 125 |
| 2004 | 3.91 | 92 |
| 2003 | 2.01 | 114 |
| 2002 | 1.74 | 94 |
| 2001 | 1.29 | 109 |
| 2000 | 4.57 | 54 |
| 1999 | 4.45 | 40 |
| 1998 | 4.17 | 49 |
| 1997 | 2.84 | 93 |
| 1996 | 1.36 | 127 |
| 1995 | 3.48 | 62 |
| 1994 | 3.35 | 62 |
| 1993 | -2.63 | 145 |
| 1992 | -1.74 | 119 |
| 1991 | -1.82 | 121 |
| 1990 | -.02 | 103 |
| 1989 | 1.97 | 78 |
| 1988 | 2.09 | 95 |
| 1987 | 3.01 | 56 |
| 1986 | 2.45 | 64 |