| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | -4.09 | 169 |
| 2015 | -.02 | 141 |
| 2014 | 3.52 | 48 |
| 2013 | 2.61 | 77 |
| 2012 | 1.52 | 103 |
| 2011 | 2.12 | 107 |
| 2010 | 5 | 48 |
| 2009 | 4.13 | 18 |
| 2008 | 3.49 | 76 |
| 2007 | 4.05 | 97 |
| 2006 | 5.42 | 65 |
| 2005 | 0.8 | 160 |
| 2004 | 30.36 | 3 |
| 2003 | 7.59 | 25 |
| 2002 | 1.2 | 115 |
| 2001 | 1.82 | 90 |
| 2000 | 2.71 | 106 |
| 1999 | -2 | 161 |
| 1998 | 0.19 | 145 |
| 1997 | 0.28 | 150 |
| 1996 | 2.41 | 97 |
| 1995 | -2.76 | 164 |
| 1994 | -1.57 | 144 |
| 1993 | -.43 | 107 |
| 1992 | -2.07 | 125 |
| 1991 | -3.12 | 137 |
| 1990 | 9.89 | 8 |
| 1989 | 3.72 | 48 |
| 1988 | 4.75 | 46 |
| 1987 | -13.06 | 158 |
| 1986 | -11.1 | 155 |