| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 2.14 | 48 |
| 2015 | 0.44 | 108 |
| 2014 | 1.09 | 95 |
| 2013 | -1.86 | 141 |
| 2012 | -7.52 | 155 |
| 2011 | -9.61 | 157 |
| 2010 | -6.64 | 153 |
| 2009 | -1.93 | 104 |
| 2008 | 3.31 | 65 |
| 2007 | 3.81 | 71 |
| 2006 | 2.47 | 80 |
| 2005 | 2.92 | 84 |
| 2004 | 3.35 | 78 |
| 2003 | 4.28 | 47 |
| 2002 | 4.7 | 39 |
| 2001 | 3.09 | 46 |
| 2000 | 2.1 | 71 |
| 1999 | 3.1 | 48 |
| 1998 | 3.99 | 47 |
| 1997 | 3.95 | 42 |
| 1996 | 2.22 | 76 |
| 1995 | 2.05 | 57 |
| 1994 | 1.44 | 61 |
| 1993 | -1.35 | 79 |
| 1992 | 1.49 | 53 |
| 1991 | 1.66 | 49 |
| 1990 | 1.54 | 41 |
| 1989 | 5.73 | 18 |
| 1988 | 5.67 | 21 |
| 1987 | 2.32 | 39 |
| 1986 | -1.81 | 65 |