| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 4.53 | 40 |
| 2015 | 4.8 | 44 |
| 2014 | 1.04 | 155 |
| 2013 | -36.7 | 196 |
| 2012 | 4.11 | 79 |
| 2011 | 3.3 | 109 |
| 2010 | 3.05 | 123 |
| 2009 | 1.71 | 78 |
| 2008 | 2.05 | 137 |
| 2007 | 4.61 | 125 |
| 2006 | 4.77 | 125 |
| 2005 | 0.91 | 185 |
| 2004 | 5.99 | 75 |
| 2003 | -5.4 | 197 |
| 2002 | 3.62 | 93 |
| 2001 | 4.46 | 61 |
| 2000 | -2.49 | 192 |
| 1999 | 3.6 | 89 |
| 1998 | 4.7 | 71 |
| 1997 | 5.3 | 71 |
| 1996 | -4 | 185 |
| 1995 | 7.2 | 28 |
| 1994 | 4.9 | 67 |
| 1993 | 0.34 | 124 |
| 1992 | -6.42 | 154 |
| 1991 | -.55 | 129 |
| 1990 | -2.15 | 142 |
| 1989 | 1.98 | 113 |
| 1988 | 1.71 | 125 |
| 1987 | -4.94 | 155 |
| 1986 | 3.58 | 76 |