| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | -.59 | 161 |
| 2015 | -3.9 | 185 |
| 2014 | 4.66 | 59 |
| 2013 | 4.59 | 70 |
| 2012 | 4.02 | 81 |
| 2011 | 4.19 | 90 |
| 2010 | 3.79 | 105 |
| 2009 | 3.47 | 47 |
| 2008 | 5.05 | 83 |
| 2007 | 4.79 | 123 |
| 2006 | 5.38 | 101 |
| 2005 | 0.9 | 186 |
| 2004 | 4.83 | 108 |
| 2003 | -1.22 | 186 |
| 2002 | 4.45 | 67 |
| 2001 | 2.06 | 126 |
| 2000 | -.86 | 181 |
| 1999 | -1.01 | 170 |
| 1998 | 4.75 | 66 |
| 1997 | -1.59 | 180 |
| 1996 | -8 | 189 |
| 1995 | -7.92 | 179 |
| 1994 | -3.83 | 165 |
| 1993 | -6.24 | 160 |
| 1992 | 1.01 | 105 |
| 1991 | 5 | 48 |
| 1990 | 3.5 | 82 |
| 1989 | 1.35 | 119 |
| 1988 | 5.03 | 78 |
| 1987 | 5.5 | 53 |
| 1986 | 3.25 | 87 |