| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | -7.06 | 134 |
| 2015 | -8.5 | 161 |
| 2014 | 7.95 | 26 |
| 2013 | 11.23 | 16 |
| 2012 | 4.11 | 62 |
| 2011 | 5.89 | 64 |
| 2010 | 4.9 | 88 |
| 2009 | 4.93 | 34 |
| 2008 | -1.42 | 143 |
| 2007 | 8.16 | 50 |
| 2006 | 5.37 | 83 |
| 2005 | 1.55 | 133 |
| 2004 | -6.23 | 166 |
| 2003 | -6.23 | 159 |
| 2002 | -6.23 | 152 |
| 2001 | -6.23 | 147 |
| 2000 | -6.23 | 150 |
| 1999 | 4.59 | 65 |
| 1998 | -1.59 | 137 |
| 1997 | -1.05 | 130 |
| 1996 | 3.88 | 76 |
| 1995 | -16.59 | 138 |
| 1994 | -18.47 | 126 |
| 1993 | -14.02 | 123 |
| 1992 | 8.57 | 30 |
| 1991 | 9.28 | 23 |
| 1990 | 7.49 | 30 |
| 1989 | 0.72 | 84 |
| 1988 | 0.56 | 82 |
| 1987 | 7.41 | 32 |
| 1986 | 1.32 | 79 |