| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2015 | 3.67 | 60 |
| 2014 | 1.68 | 105 |
| 2013 | 0.15 | 165 |
| 2012 | 14.02 | 13 |
| 2011 | -3.7 | 177 |
| 2010 | -2.08 | 176 |
| 2009 | 9.95 | 22 |
| 2008 | 10.3 | 73 |
| 2007 | -8.97 | 175 |
| 2006 | 8.04 | 46 |
| 2005 | 7.89 | 51 |
| 2004 | -5.36 | 172 |
| 2003 | -1.75 | 170 |
| 2002 | 5.19 | 61 |
| 2001 | 12.43 | 21 |
| 2000 | 3.82 | 80 |
| 1999 | -8.03 | 164 |
| 1998 | 4.26 | 93 |
| 1997 | 5.57 | 83 |
| 1996 | 11.33 | 56 |
| 1995 | 9.23 | 82 |
| 1994 | 41.72 | 28 |
| 1993 | -8.43 | 152 |
| 1992 | -3.11 | 137 |
| 1991 | 3.19 | 116 |
| 1990 | -.74 | 133 |
| 1989 | -3.69 | 134 |
| 1988 | 15.48 | 39 |
| 1987 | -5.97 | 125 |
| 1986 | -13.06 | 126 |