| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 4.53 | 98 |
| 2015 | 6.54 | 94 |
| 2014 | 14.58 | 39 |
| 2013 | 5.62 | 122 |
| 2012 | 1.56 | 139 |
| 2011 | 13.79 | 62 |
| 2010 | 16.13 | 58 |
| 2009 | 11.71 | 77 |
| 2008 | 18.43 | 58 |
| 2007 | -6.31 | 162 |
| 2006 | -4.59 | 163 |
| 2005 | 18.28 | 62 |
| 2004 | 13.07 | 89 |
| 2003 | -7.64 | 159 |
| 2002 | -5.08 | 153 |
| 2001 | -1.99 | 149 |
| 2000 | 2.38 | 136 |
| 1999 | 11.06 | 99 |
| 1998 | -16.15 | 154 |
| 1997 | -7.73 | 151 |
| 1996 | 4.87 | 136 |
| 1995 | 4.28 | 130 |
| 1994 | 78.52 | 14 |
| 1993 | 12.82 | 82 |
| 1992 | -3.34 | 125 |
| 1991 | -4.24 | 124 |
| 1990 | -3.54 | 116 |
| 1989 | 12.42 | 82 |
| 1988 | -6.27 | 119 |
| 1987 | 3.65 | 104 |
| 1986 | 2.22 | 107 |