| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | -14.66 | 138 |
| 2015 | 34.01 | 1 |
| 2014 | 38.65 | 1 |
| 2013 | 8.4 | 24 |
| 2012 | 4.14 | 59 |
| 2011 | -1.57 | 154 |
| 2010 | -6.54 | 156 |
| 2009 | 12.12 | 18 |
| 2008 | 9.66 | 26 |
| 2007 | 1.65 | 108 |
| 2006 | 30.52 | 1 |
| 2005 | -43.77 | 171 |
| 2004 | -8.15 | 164 |
| 2003 | 5.87 | 44 |
| 2002 | 3.07 | 72 |
| 2001 | -2.61 | 131 |
| 2000 | -2.19 | 120 |
| 1999 | 9.85 | 21 |
| 1998 | -1.29 | 115 |
| 1997 | -.96 | 116 |
| 1996 | -7.87 | 148 |
| 1995 | 6.85 | 31 |
| 1994 | -6.14 | 112 |
| 1993 | -4.16 | 101 |
| 1992 | -2.71 | 96 |
| 1991 | -2.34 | 95 |
| 1990 | -1.85 | 85 |
| 1989 | 4.44 | 43 |
| 1988 | 1.21 | 75 |
| 1987 | 6.85 | 24 |
| 1986 | -5.58 | 101 |