| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | -2.47 | 170 |
| 2015 | -.57 | 173 |
| 2014 | -2.35 | 189 |
| 2013 | -2.13 | 185 |
| 2012 | 0.91 | 146 |
| 2011 | 3.75 | 103 |
| 2010 | 2.6 | 131 |
| 2009 | -1.76 | 126 |
| 2008 | -1.94 | 188 |
| 2007 | 0.15 | 191 |
| 2006 | 4.4 | 134 |
| 2005 | 0.39 | 193 |
| 2004 | 0.5 | 191 |
| 2003 | 2.9 | 130 |
| 2002 | 3.87 | 80 |
| 2001 | 2.74 | 106 |
| 2000 | 2.85 | 140 |
| 1999 | 3.05 | 109 |
| 1998 | -.56 | 170 |
| 1997 | -1.47 | 178 |
| 1996 | 2.88 | 125 |
| 1995 | 4.48 | 81 |
| 1994 | 3.15 | 108 |
| 1993 | 0.3 | 127 |
| 1992 | 4.76 | 55 |
| 1991 | 3.15 | 71 |
| 1990 | 1.09 | 109 |
| 1989 | -1.07 | 144 |
| 1988 | 1.1 | 130 |
| 1987 | 2.01 | 106 |
| 1986 | -2.72 | 148 |