| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 0.2 | 87 |
| 2015 | -1.06 | 123 |
| 2014 | -1 | 130 |
| 2013 | -.72 | 129 |
| 2012 | 0.04 | 118 |
| 2011 | 0.96 | 108 |
| 2010 | 0.74 | 108 |
| 2009 | 0.31 | 66 |
| 2008 | 0.53 | 98 |
| 2007 | 0.73 | 120 |
| 2006 | 1.62 | 101 |
| 2005 | 1.46 | 113 |
| 2004 | 1.7 | 103 |
| 2003 | 1.23 | 94 |
| 2002 | 0.26 | 99 |
| 2001 | 0.91 | 86 |
| 2000 | 2.84 | 59 |
| 1999 | 2.17 | 65 |
| 1998 | 2.8 | 64 |
| 1997 | 0.35 | 99 |
| 1996 | 2.74 | 66 |
| 1995 | 0.7 | 80 |
| 1994 | 1.65 | 55 |
| 1993 | -.72 | 75 |
| 1992 | 2.35 | 34 |
| 1991 | 1.97 | 43 |
| 1990 | 3.44 | 24 |
| 1989 | 3.12 | 32 |
| 1988 | 2.26 | 48 |
| 1987 | 2.35 | 37 |
| 1986 | 2.13 | 46 |