| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | -5.3 | 124 |
| 2015 | 7.62 | 19 |
| 2014 | 3.1 | 81 |
| 2013 | 11.48 | 20 |
| 2012 | -12.88 | 170 |
| 2011 | -2.43 | 161 |
| 2010 | 39.52 | 2 |
| 2009 | -26.1 | 176 |
| 2008 | -2.19 | 141 |
| 2007 | 8.54 | 26 |
| 2006 | -.53 | 126 |
| 2005 | 18.79 | 6 |
| 2004 | -1.46 | 144 |
| 2003 | 6.87 | 38 |
| 2002 | -2.28 | 133 |
| 2001 | 1.05 | 96 |
| 2000 | -1.75 | 117 |
| 1999 | 2.47 | 90 |
| 1998 | 8.73 | 22 |
| 1997 | 0.46 | 98 |
| 1996 | -1.15 | 122 |
| 1995 | 5.62 | 42 |
| 1994 | 7.47 | 24 |
| 1993 | 6.04 | 29 |
| 1992 | 0.21 | 79 |
| 1991 | 4.1 | 40 |
| 1990 | 8.48 | 25 |
| 1989 | -8.22 | 105 |
| 1988 | 7.79 | 29 |
| 1987 | -2.73 | 81 |
| 1986 | 0.17 | 73 |