| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | -2.94 | 107 |
| 2015 | 3.13 | 46 |
| 2014 | -2.2 | 141 |
| 2013 | 57.87 | 1 |
| 2012 | -22.93 | 159 |
| 2011 | -10.34 | 158 |
| 2010 | 2.09 | 83 |
| 2009 | -5.27 | 136 |
| 2008 | 9.01 | 15 |
| 2007 | -.05 | 131 |
| 2006 | -.97 | 134 |
| 2005 | 4.28 | 59 |
| 2004 | 0.71 | 121 |
| 2003 | 5.53 | 38 |
| 2002 | 1.15 | 87 |
| 2001 | -.02 | 107 |
| 2000 | -5.47 | 120 |
| 1999 | 13.65 | 2 |
| 1998 | 10.11 | 12 |
| 1997 | -.36 | 103 |
| 1996 | 15.11 | 7 |
| 1995 | 13.78 | 9 |
| 1994 | -22.17 | 111 |
| 1993 | 3.8 | 32 |
| 1992 | -1.97 | 74 |
| 1991 | 2.48 | 40 |
| 1990 | -5.52 | 76 |
| 1989 | -4.4 | 79 |
| 1988 | 2.89 | 41 |
| 1987 | -7.6 | 80 |
| 1986 | 11.21 | 10 |