| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 1.87 | 120 |
| 2015 | 1.72 | 129 |
| 2014 | 1.6 | 142 |
| 2013 | 0.49 | 165 |
| 2012 | 0.49 | 152 |
| 2011 | 3.66 | 105 |
| 2010 | 4.08 | 100 |
| 2009 | -5.62 | 178 |
| 2008 | 1.08 | 153 |
| 2007 | 3.26 | 153 |
| 2006 | 3.7 | 149 |
| 2005 | 0.71 | 189 |
| 2004 | 1.17 | 185 |
| 2003 | -.71 | 183 |
| 2002 | 0 | 170 |
| 2001 | 1.7 | 140 |
| 2000 | 2.96 | 138 |
| 1999 | 1.99 | 132 |
| 1998 | 1.98 | 145 |
| 1997 | 1.85 | 151 |
| 1996 | 0.82 | 170 |
| 1995 | 1.74 | 144 |
| 1994 | 2.46 | 115 |
| 1993 | -.96 | 142 |
| 1992 | 1.92 | 89 |
| 1991 | 5.11 | 45 |
| 1990 | 5.26 | 49 |
| 1989 | 3.9 | 81 |
| 1988 | 3.71 | 98 |
| 1987 | 1.4 | 117 |
| 1986 | 2.29 | 105 |