| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 1.83 | 67 |
| 2015 | -3.79 | 142 |
| 2014 | -.4 | 120 |
| 2013 | 17.79 | 10 |
| 2012 | 13.29 | 20 |
| 2011 | 5.33 | 44 |
| 2010 | -9.47 | 152 |
| 2009 | 12.75 | 30 |
| 2008 | -3.73 | 148 |
| 2007 | 5.99 | 59 |
| 2006 | 6.15 | 53 |
| 2005 | 17.88 | 6 |
| 2004 | 14.63 | 11 |
| 2003 | 29 | 3 |
| 2002 | 18.35 | 10 |
| 2001 | 6 | 42 |
| 2000 | 2.19 | 77 |
| 1999 | -1.54 | 110 |
| 1998 | -1.78 | 107 |
| 1997 | -4.41 | 124 |
| 1996 | -32.91 | 131 |
| 1995 | -7.97 | 113 |
| 1994 | -7.79 | 109 |
| 1993 | -11.2 | 112 |
| 1992 | -1.3 | 85 |
| 1991 | 15.03 | 11 |