| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 2.92 | 84 |
| 2015 | 0.63 | 163 |
| 2014 | -.95 | 184 |
| 2013 | 2.36 | 121 |
| 2012 | 3.7 | 93 |
| 2011 | 1.68 | 150 |
| 2010 | 6.44 | 58 |
| 2009 | -1.71 | 125 |
| 2008 | -1.64 | 185 |
| 2007 | 3.55 | 140 |
| 2006 | 1.92 | 179 |
| 2005 | 2.75 | 154 |
| 2004 | -.06 | 195 |
| 2003 | 0.17 | 177 |
| 2002 | 2.62 | 115 |
| 2001 | 5.36 | 41 |
| 2000 | 5.89 | 50 |
| 1999 | -2.4 | 180 |
| 1998 | -2.84 | 182 |
| 1997 | -6.45 | 191 |
| 1996 | -10.3 | 191 |
| 1995 | 8.21 | 21 |
| 1994 | 5.88 | 47 |
| 1993 | 6.01 | 41 |
| 1992 | 7.14 | 34 |
| 1991 | 0.09 | 118 |
| 1990 | 2.68 | 95 |
| 1989 | -1.69 | 148 |
| 1988 | 7.79 | 36 |
| 1987 | 9.36 | 20 |
| 1986 | 24.54 | 1 |