| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | -3.3 | 109 |
| 2015 | -1.64 | 127 |
| 2014 | 1.85 | 70 |
| 2013 | 2.31 | 65 |
| 2012 | 1.26 | 90 |
| 2011 | 3.45 | 55 |
| 2010 | 5.96 | 28 |
| 2009 | -2.63 | 115 |
| 2008 | 3.64 | 62 |
| 2007 | 2.49 | 89 |
| 2006 | 2.62 | 77 |
| 2005 | 2.71 | 89 |
| 2004 | 4.7 | 53 |
| 2003 | 1.32 | 93 |
| 2002 | 5.28 | 36 |
| 2001 | 5.61 | 24 |
| 2000 | -1.03 | 101 |
| 1999 | -13.86 | 127 |
| 1998 | 4.78 | 38 |
| 1997 | 3.81 | 43 |
| 1996 | -.84 | 108 |
| 1995 | 1.77 | 61 |
| 1994 | 2.19 | 49 |
| 1993 | 0.85 | 63 |
| 1992 | -1.28 | 72 |
| 1991 | 1.63 | 51 |
| 1990 | 3.64 | 23 |
| 1989 | -2.25 | 73 |
| 1988 | -5.13 | 78 |
| 1987 | 3.79 | 28 |
| 1986 | -2.21 | 69 |