| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 1.77 | 86 |
| 2015 | -2.96 | 176 |
| 2014 | 0.07 | 152 |
| 2013 | -.31 | 154 |
| 2012 | -.55 | 156 |
| 2011 | -1.11 | 173 |
| 2010 | -.74 | 172 |
| 2009 | 0.88 | 59 |
| 2008 | 3.9 | 71 |
| 2007 | 2.63 | 132 |
| 2006 | 5.81 | 58 |
| 2005 | 2.67 | 115 |
| 2004 | 1.35 | 156 |
| 2003 | 1.67 | 127 |
| 2002 | -7.39 | 188 |
| 2001 | -5.64 | 190 |
| 2000 | 3.79 | 73 |
| 1999 | -1.47 | 156 |
| 1998 | 2.5 | 98 |
| 1997 | 3 | 88 |
| 1996 | 0.2 | 151 |
| 1995 | -1.41 | 153 |
| 1994 | 6.14 | 23 |
| 1993 | -2.13 | 137 |
| 1992 | -.36 | 102 |
| 1991 | 0.3 | 91 |
| 1990 | 8.82 | 11 |
| 1989 | -.94 | 126 |
| 1988 | -4 | 151 |
| 1987 | -5.1 | 148 |
| 1986 | -2.39 | 133 |