| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2015 | 2.405 | 110 |
| 2014 | 2.794 | 103 |
| 2013 | 3.284 | 95 |
| 2012 | 1.759 | 131 |
| 2011 | 2.108 | 135 |
| 2010 | 3.232 | 107 |
| 2009 | -.185 | 107 |
| 2008 | -.718 | 159 |
| 2007 | 4.88 | 119 |
| 2006 | 3.917 | 123 |
| 2005 | 3.595 | 118 |
| 2004 | 5.07 | 88 |
| 2003 | 3.434 | 99 |
| 2002 | 4.229 | 74 |
| 2001 | 5.254 | 49 |
| 2000 | 3.789 | 104 |
| 1999 | 5.576 | 39 |
| 1998 | 2.731 | 106 |
| 1997 | 2.755 | 108 |
| 1996 | 2.499 | 107 |
| 1995 | 5.02 | 49 |
| 1994 | 5.18 | 42 |
| 1993 | 4.261 | 48 |
| 1992 | 3.537 | 64 |
| 1991 | 0 | 91 |
| 1990 | -1.028 | 93 |
| 1989 | 0.766 | 84 |
| 1988 | 0.945 | 90 |
| 1987 | 0.616 | 88 |
| 1986 | 9.138 | 14 |