| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | -3.23 | 113 |
| 2015 | 9.91 | 11 |
| 2014 | 16.71 | 7 |
| 2013 | -4.63 | 164 |
| 2012 | 11.45 | 9 |
| 2011 | -10.73 | 174 |
| 2010 | 30.22 | 5 |
| 2009 | -3.42 | 141 |
| 2008 | -24.65 | 174 |
| 2007 | 6.42 | 42 |
| 2006 | 4.37 | 61 |
| 2005 | -6.17 | 151 |
| 2004 | 2.56 | 102 |
| 2003 | 0.13 | 118 |
| 2002 | -4.81 | 152 |
| 2001 | 4.33 | 56 |
| 2000 | 7.08 | 30 |
| 1999 | -1.22 | 126 |
| 1998 | 1.51 | 87 |
| 1997 | 3.36 | 62 |
| 1996 | 2.72 | 85 |
| 1995 | 5.27 | 46 |
| 1994 | 3.32 | 49 |
| 1993 | 24.33 | 6 |
| 1992 | 2.73 | 61 |
| 1991 | -1.3 | 88 |
| 1990 | 5.71 | 37 |
| 1989 | 14.25 | 6 |
| 1988 | 1.34 | 74 |
| 1987 | -9.6 | 102 |
| 1986 | -.75 | 81 |