| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 1.75 | 87 |
| 2015 | 2.88 | 62 |
| 2014 | 2.55 | 76 |
| 2013 | 4.55 | 32 |
| 2012 | 2.41 | 76 |
| 2011 | 1.43 | 132 |
| 2010 | -5.79 | 192 |
| 2009 | -14.79 | 198 |
| 2008 | -9.53 | 196 |
| 2007 | -10.51 | 201 |
| 2006 | -4.04 | 196 |
| 2005 | -6.4 | 199 |
| 2004 | 0.29 | 174 |
| 2003 | 1.98 | 118 |
| 2002 | -2.86 | 181 |
| 2001 | -3.82 | 183 |
| 2000 | 4.99 | 46 |
| 1999 | -2.26 | 165 |
| 1998 | -4.59 | 179 |
| 1997 | 3.02 | 87 |
| 1996 | 0.77 | 140 |
| 1995 | 1.45 | 114 |
| 1994 | 1.33 | 100 |
| 1993 | -4.28 | 154 |
| 1992 | -2.43 | 130 |
| 1991 | -4.76 | 148 |
| 1990 | 11.7 | 5 |
| 1989 | 5.93 | 28 |
| 1988 | -8.21 | 155 |
| 1987 | -2.48 | 129 |
| 1986 | -19.65 | 157 |