| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 1.04 | 92 |
| 2015 | -7.51 | 159 |
| 2014 | 4.11 | 74 |
| 2013 | -2.01 | 151 |
| 2012 | -2.51 | 143 |
| 2011 | -.09 | 145 |
| 2010 | 2.88 | 116 |
| 2009 | -8.1 | 134 |
| 2008 | 8.06 | 38 |
| 2007 | 8.22 | 49 |
| 2006 | 5.06 | 87 |
| 2005 | 2.96 | 108 |
| 2004 | 9.44 | 42 |
| 2003 | 11.94 | 26 |
| 2002 | -13.46 | 164 |
| 2001 | -.41 | 123 |
| 2000 | -9.97 | 156 |
| 1999 | -4.16 | 142 |
| 1998 | 5.64 | 51 |
| 1997 | 1.7 | 105 |
| 1996 | 1.86 | 107 |
| 1995 | 7.88 | 34 |
| 1994 | 1.54 | 96 |
| 1993 | 1.73 | 64 |
| 1992 | 4.89 | 49 |
| 1991 | 2.7 | 58 |
| 1990 | 9.69 | 19 |
| 1989 | 6.03 | 47 |
| 1988 | 17.44 | 8 |
| 1987 | 8.85 | 24 |
| 1986 | -3.54 | 98 |