| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | -2.28 | 109 |
| 2015 | 2.88 | 77 |
| 2014 | 6.88 | 33 |
| 2013 | -4.06 | 162 |
| 2012 | 5.01 | 45 |
| 2011 | 3.79 | 90 |
| 2010 | 7.97 | 24 |
| 2009 | 1.43 | 97 |
| 2008 | 4.28 | 80 |
| 2007 | 7.13 | 35 |
| 2006 | 3.8 | 75 |
| 2005 | 2.25 | 83 |
| 2004 | 11.34 | 24 |
| 2003 | -1.84 | 131 |
| 2002 | 8.66 | 23 |
| 2001 | -2.43 | 129 |
| 2000 | -2.58 | 124 |
| 1999 | 0 | 118 |
| 1998 | 1.82 | 83 |
| 1997 | -1.38 | 119 |
| 1996 | -.39 | 120 |
| 1995 | 6.72 | 33 |
| 1994 | 2.82 | 55 |
| 1993 | 14.9 | 10 |
| 1992 | -5.2 | 104 |
| 1991 | 10.26 | 12 |
| 1990 | 4.78 | 46 |
| 1989 | 3.74 | 52 |
| 1988 | 0.92 | 76 |
| 1987 | 4.71 | 36 |
| 1986 | -6.97 | 102 |