| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | -2.3 | 169 |
| 2015 | 2.65 | 105 |
| 2014 | -2.51 | 190 |
| 2013 | 2.41 | 119 |
| 2012 | -1.03 | 172 |
| 2011 | 6 | 59 |
| 2010 | 10.13 | 14 |
| 2009 | -5.92 | 181 |
| 2008 | 4.06 | 96 |
| 2007 | 9.01 | 37 |
| 2006 | 8.05 | 46 |
| 2005 | 8.85 | 29 |
| 2004 | 9.03 | 30 |
| 2003 | 8.84 | 26 |
| 2002 | -10.89 | 197 |
| 2001 | -4.41 | 192 |
| 2000 | -.79 | 180 |
| 1999 | -3.39 | 183 |
| 1998 | 3.85 | 98 |
| 1997 | 8.11 | 27 |
| 1996 | 5.53 | 69 |
| 1995 | -2.85 | 168 |
| 1994 | 5.84 | 48 |
| 1993 | 5.91 | 43 |
| 1992 | 11.94 | 10 |
| 1991 | 12.67 | 4 |
| 1990 | -2.4 | 143 |
| 1989 | -7.5 | 160 |
| 1988 | -2.56 | 153 |
| 1987 | 2.91 | 90 |
| 1986 | 7.88 | 25 |