| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2015 | -7.44 | 158 |
| 2014 | 5.51 | 41 |
| 2013 | -11.41 | 174 |
| 2012 | 1.97 | 101 |
| 2011 | -1.33 | 151 |
| 2010 | 4.85 | 53 |
| 2009 | 17.71 | 9 |
| 2008 | -15.89 | 170 |
| 2007 | -13.98 | 163 |
| 2006 | -1.14 | 131 |
| 2005 | 4.63 | 52 |
| 2004 | 0.63 | 123 |
| 2003 | 4.48 | 54 |
| 2002 | 9.36 | 20 |
| 2001 | -6.6 | 153 |
| 2000 | 9.34 | 18 |
| 1999 | 4.78 | 62 |
| 1998 | 8.78 | 21 |
| 1997 | -5.98 | 139 |
| 1996 | 7.14 | 34 |
| 1995 | -1.49 | 103 |
| 1994 | 12.64 | 7 |
| 1993 | 9.34 | 19 |
| 1992 | -4.4 | 101 |
| 1991 | 14 | 8 |
| 1990 | 18.62 | 5 |
| 1989 | -.48 | 79 |
| 1988 | 1.62 | 72 |
| 1987 | 9.03 | 18 |
| 1986 | -2.15 | 89 |