| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | -1.91 | 108 |
| 2015 | -.66 | 122 |
| 2014 | 8.03 | 25 |
| 2013 | 3.5 | 76 |
| 2012 | 0.97 | 115 |
| 2011 | 0.35 | 139 |
| 2010 | -6.1 | 153 |
| 2009 | -12.01 | 171 |
| 2008 | 2.64 | 101 |
| 2007 | 1.19 | 113 |
| 2006 | 3.58 | 80 |
| 2005 | 2.58 | 77 |
| 2004 | 1.36 | 118 |
| 2003 | 9.28 | 23 |
| 2002 | 3.32 | 67 |
| 2001 | 6.47 | 43 |
| 2000 | 9.77 | 15 |
| 1999 | 1.03 | 109 |
| 1998 | 6.04 | 36 |
| 1997 | 4.5 | 45 |
| 1996 | 3.86 | 70 |
| 1995 | 3.22 | 69 |
| 1994 | 2.69 | 56 |
| 1993 | 0.04 | 80 |
| 1992 | 4.41 | 46 |
| 1991 | 1.08 | 72 |
| 1990 | 1.54 | 67 |
| 1989 | 5.58 | 32 |
| 1988 | -6.42 | 103 |
| 1987 | 5.15 | 33 |
| 1986 | -1.75 | 87 |