| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | -2.86 | 111 |
| 2015 | -.43 | 119 |
| 2014 | 3.6 | 69 |
| 2013 | 3.09 | 86 |
| 2012 | -.86 | 131 |
| 2011 | -1.95 | 156 |
| 2010 | -4.32 | 141 |
| 2009 | 3.24 | 73 |
| 2008 | 5.6 | 64 |
| 2007 | 4.07 | 67 |
| 2006 | 1.56 | 105 |
| 2005 | 1.4 | 97 |
| 2004 | 9.01 | 35 |
| 2003 | -5.31 | 148 |
| 2002 | -2.15 | 131 |
| 2001 | 1.58 | 90 |
| 2000 | 1.12 | 95 |
| 1999 | 5.38 | 54 |
| 1998 | -7.37 | 149 |
| 1997 | 4.53 | 42 |
| 1996 | 4.34 | 62 |
| 1995 | 6.95 | 29 |
| 1994 | 0.12 | 86 |
| 1993 | -4.21 | 102 |
| 1992 | 8.97 | 22 |
| 1991 | 3.17 | 47 |
| 1990 | -5.59 | 97 |
| 1989 | -.15 | 77 |
| 1988 | 9.53 | 23 |
| 1987 | -4.41 | 89 |
| 1986 | 5.38 | 29 |