| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | -2.02 | 100 |
| 2015 | 1.16 | 88 |
| 2014 | 2.25 | 59 |
| 2013 | 4.55 | 35 |
| 2012 | 2.61 | 67 |
| 2011 | 3.62 | 50 |
| 2010 | 4.01 | 45 |
| 2009 | 1.68 | 44 |
| 2008 | 0.11 | 108 |
| 2007 | -.68 | 134 |
| 2006 | 3.76 | 64 |
| 2005 | 2.66 | 91 |
| 2004 | 0.09 | 128 |
| 2003 | -2.27 | 129 |
| 2002 | -.39 | 106 |
| 2001 | -2.76 | 123 |
| 2000 | 1.89 | 74 |
| 1999 | 3.16 | 46 |
| 1998 | 18.03 | 3 |
| 1997 | -3.19 | 112 |
| 1996 | -11.75 | 124 |
| 1995 | -.9 | 94 |
| 1994 | -12.91 | 104 |
| 1993 | -3.39 | 89 |
| 1992 | -4.92 | 90 |
| 1991 | -4.54 | 88 |
| 1990 | -5.65 | 77 |
| 1989 | 31.82 | 1 |
| 1988 | -14.36 | 84 |
| 1987 | -18.31 | 87 |
| 1986 | 20.86 | 3 |