| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 2.72 | 55 |
| 2015 | -9.44 | 185 |
| 2014 | -1.14 | 170 |
| 2013 | 0.2 | 143 |
| 2012 | 0.49 | 136 |
| 2011 | 5.85 | 30 |
| 2010 | 4.61 | 54 |
| 2009 | -14.42 | 196 |
| 2008 | 2.86 | 86 |
| 2007 | 8.55 | 27 |
| 2006 | 8.03 | 27 |
| 2005 | 3.46 | 92 |
| 2004 | 12.95 | 7 |
| 2003 | 10.29 | 12 |
| 2002 | 6.25 | 23 |
| 2001 | 10.3 | 5 |
| 2000 | 6.97 | 21 |
| 1999 | 0.75 | 127 |
| 1998 | -1.02 | 160 |
| 1997 | -2.11 | 170 |
| 1996 | -9.2 | 188 |
| 1995 | -11.5 | 181 |
| 1994 | -22.55 | 180 |
| 1993 | -14.27 | 168 |
| 1992 | -9.96 | 162 |
| 1991 | -8.6 | 160 |
| 1990 | -6.56 | 153 |
| 1989 | 3.37 | 55 |
| 1988 | 2.11 | 94 |