| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | -.41 | 141 |
| 2015 | -3.04 | 178 |
| 2014 | -1.05 | 169 |
| 2013 | 1.06 | 121 |
| 2012 | 3.34 | 56 |
| 2011 | 4.18 | 61 |
| 2010 | 4.46 | 57 |
| 2009 | -7.85 | 186 |
| 2008 | 5.29 | 42 |
| 2007 | 8.72 | 23 |
| 2006 | 8.51 | 22 |
| 2005 | 6.78 | 35 |
| 2004 | 7.61 | 33 |
| 2003 | 7.78 | 23 |
| 2002 | 5.23 | 31 |
| 2001 | 5.54 | 26 |
| 2000 | 10.46 | 6 |
| 1999 | 6.73 | 22 |
| 1998 | -5.14 | 181 |
| 1997 | 1.57 | 127 |
| 1996 | -3.46 | 180 |
| 1995 | -4.17 | 167 |
| 1994 | -12.46 | 174 |
| 1993 | -8.56 | 164 |
| 1992 | -14.57 | 169 |
| 1991 | -5.26 | 149 |
| 1990 | -3.37 | 136 |