| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | -2.6 | 104 |
| 2015 | 3.05 | 48 |
| 2014 | -4.52 | 146 |
| 2013 | 4.47 | 36 |
| 2012 | 7.1 | 19 |
| 2011 | 3.99 | 45 |
| 2010 | 0.52 | 117 |
| 2009 | 3.75 | 23 |
| 2008 | 0.58 | 97 |
| 2007 | 0.75 | 118 |
| 2006 | 2.3 | 85 |
| 2005 | -2.1 | 135 |
| 2004 | 10.35 | 18 |
| 2003 | 13.67 | 5 |
| 2002 | -1.25 | 116 |
| 2001 | 2.11 | 60 |
| 2000 | -8.93 | 125 |
| 1999 | -4.95 | 118 |
| 1998 | -11.83 | 124 |
| 1997 | 10.28 | 11 |
| 1996 | 8.63 | 16 |
| 1995 | -7.21 | 115 |
| 1994 | -10.26 | 102 |
| 1993 | 13.97 | 3 |
| 1992 | 18.94 | 2 |
| 1991 | -4.45 | 87 |
| 1990 | 1.87 | 39 |