| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2013 | -.35 | 134 |
| 2012 | 2.46 | 90 |
| 2011 | -5.21 | 168 |
| 2010 | 41.42 | 1 |
| 2009 | -2.73 | 129 |
| 2008 | 26.55 | 7 |
| 2007 | 7.01 | 36 |
| 2006 | 0.64 | 115 |
| 2005 | -7.69 | 155 |
| 2004 | 24.26 | 5 |
| 2003 | 14.29 | 10 |
| 2002 | -19.59 | 166 |
| 2001 | -35.65 | 168 |
| 2000 | 51.32 | 1 |
| 1999 | -24 | 159 |
| 1998 | -6.54 | 145 |
| 1997 | 20.9 | 3 |
| 1996 | 20.41 | 8 |
| 1995 | -14.04 | 133 |
| 1994 | -10.47 | 120 |
| 1993 | 0 | 81 |
| 1992 | -5.91 | 107 |
| 1991 | 4.1 | 39 |
| 1990 | -2.5 | 89 |
| 1989 | 9.29 | 16 |
| 1988 | -1.61 | 90 |
| 1987 | 15.53 | 10 |
| 1986 | 3.87 | 43 |