| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 1.98 | 78 |
| 2015 | 4.16 | 62 |
| 2014 | 0.34 | 125 |
| 2013 | 1.99 | 107 |
| 2012 | -.29 | 123 |
| 2011 | 4.09 | 92 |
| 2010 | -6.13 | 168 |
| 2009 | -3.45 | 95 |
| 2008 | 5.67 | 60 |
| 2007 | 12.87 | 17 |
| 2006 | 8.98 | 48 |
| 2005 | 5.16 | 67 |
| 2004 | 4.07 | 97 |
| 2003 | 7.15 | 55 |
| 2002 | 4.9 | 65 |
| 2001 | 5.27 | 48 |
| 2000 | 11.33 | 23 |
| 1999 | -5.4 | 144 |
| 1998 | 12.24 | 14 |
| 1997 | -2.84 | 142 |
| 1996 | -73.66 | 155 |
| 1995 | -5.4 | 120 |
| 1994 | 6 | 46 |
| 1993 | -6.2 | 107 |
| 1992 | -6.4 | 107 |
| 1991 | -18.6 | 123 |
| 1990 | -12.5 | 112 |
| 1989 | 0.97 | 83 |
| 1988 | 9.91 | 20 |
| 1987 | 5.37 | 43 |
| 1986 | 5.19 | 45 |