| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 3.24 | 39 |
| 2015 | 3.28 | 48 |
| 2014 | 1.68 | 99 |
| 2013 | -1.38 | 173 |
| 2012 | -2.99 | 181 |
| 2011 | -1.35 | 177 |
| 2010 | -.45 | 167 |
| 2009 | -4.42 | 147 |
| 2008 | -.48 | 160 |
| 2007 | 1.87 | 144 |
| 2006 | 2.43 | 136 |
| 2005 | 1.99 | 138 |
| 2004 | 1.4 | 153 |
| 2003 | 1.34 | 132 |
| 2002 | 1.44 | 105 |
| 2001 | 3.28 | 53 |
| 2000 | 4.82 | 48 |
| 1999 | 4.06 | 47 |
| 1998 | 3.88 | 58 |
| 1997 | 3.26 | 78 |
| 1996 | 2.25 | 108 |
| 1995 | 2.3 | 95 |
| 1994 | 1.9 | 91 |
| 1993 | -1.54 | 126 |
| 1992 | 0.44 | 89 |
| 1991 | 2.29 | 53 |
| 1990 | 3.68 | 47 |
| 1989 | 4.66 | 40 |
| 1988 | 4.87 | 45 |
| 1987 | 5.27 | 34 |
| 1986 | 2.95 | 51 |