| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 3.99 | 40 |
| 2015 | 5.45 | 38 |
| 2014 | 4.34 | 53 |
| 2013 | 5.45 | 48 |
| 2012 | 3.07 | 74 |
| 2011 | 2.35 | 111 |
| 2010 | 10.06 | 18 |
| 2009 | -2.3 | 125 |
| 2008 | -4.98 | 155 |
| 2007 | 5.09 | 54 |
| 2006 | 1.73 | 102 |
| 2005 | 6.91 | 37 |
| 2004 | 1.75 | 113 |
| 2003 | 2.43 | 89 |
| 2002 | -3.5 | 141 |
| 2001 | 11.66 | 15 |
| 2000 | -1.28 | 114 |
| 1999 | 7.09 | 37 |
| 1998 | 8.29 | 26 |
| 1997 | -3.07 | 131 |
| 1996 | 4.47 | 57 |
| 1995 | 4.79 | 50 |
| 1994 | 3.08 | 53 |
| 1993 | -3.27 | 97 |
| 1992 | -3.33 | 98 |
| 1991 | -.71 | 84 |
| 1990 | 3.47 | 53 |
| 1989 | 4.11 | 47 |
| 1988 | 4.55 | 45 |
| 1987 | 4.19 | 40 |
| 1986 | 4.92 | 33 |