| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | -4.38 | 172 |
| 2015 | -4.59 | 182 |
| 2014 | -.38 | 159 |
| 2013 | 2.06 | 95 |
| 2012 | 0.97 | 120 |
| 2011 | 2.99 | 82 |
| 2010 | 6.49 | 28 |
| 2009 | -1.11 | 92 |
| 2008 | 4.03 | 69 |
| 2007 | 4.95 | 80 |
| 2006 | 2.81 | 126 |
| 2005 | 2 | 137 |
| 2004 | 4.47 | 80 |
| 2003 | -.15 | 163 |
| 2002 | 1.68 | 96 |
| 2001 | -.02 | 143 |
| 2000 | 2.61 | 111 |
| 1999 | -1.04 | 154 |
| 1998 | -1.21 | 162 |
| 1997 | 1.77 | 124 |
| 1996 | 0.59 | 143 |
| 1995 | 2.75 | 78 |
| 1994 | 3.64 | 57 |
| 1993 | 2.95 | 55 |
| 1992 | -2.13 | 127 |
| 1991 | -.24 | 99 |
| 1990 | -4.83 | 149 |
| 1989 | 1.39 | 88 |
| 1988 | -2 | 135 |
| 1987 | 1.57 | 78 |
| 1986 | 5.79 | 24 |