| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 0.03 | 98 |
| 2015 | -11.76 | 164 |
| 2014 | 4.31 | 54 |
| 2013 | 33.7 | 3 |
| 2012 | -26.13 | 180 |
| 2011 | 13.85 | 11 |
| 2010 | 10.04 | 19 |
| 2009 | -8.74 | 158 |
| 2008 | 28.09 | 6 |
| 2007 | -26.81 | 171 |
| 2006 | 3.36 | 82 |
| 2005 | -17.14 | 165 |
| 2004 | 18.66 | 11 |
| 2003 | 5.32 | 48 |
| 2002 | -5.73 | 153 |
| 2001 | 28.18 | 2 |
| 2000 | -17.14 | 160 |
| 1999 | 2.13 | 97 |
| 1998 | -11.46 | 157 |
| 1997 | -.09 | 108 |
| 1996 | -2.96 | 132 |
| 1995 | 4.63 | 51 |
| 1994 | 2.9 | 54 |
| 1993 | 13.64 | 11 |
| 1992 | -12.92 | 119 |
| 1991 | -12.34 | 118 |