| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 1.69 | 49 |
| 2015 | 1.84 | 118 |
| 2014 | 1.99 | 122 |
| 2013 | 2.51 | 104 |
| 2012 | 2.51 | 109 |
| 2011 | 2.39 | 113 |
| 2010 | 2.05 | 125 |
| 2009 | 1.85 | 125 |
| 2008 | 1.92 | 143 |
| 2007 | 2.52 | 138 |
| 2006 | 2.1 | 139 |
| 2005 | 1.98 | 126 |
| 2004 | 1.34 | 131 |
| 2003 | 0.09 | 174 |
| 2002 | -4.89 | 184 |
| 2001 | -5.01 | 182 |
| 2000 | -4.09 | 178 |
| 1999 | 0.84 | 128 |
| 1998 | 3.47 | 63 |
| 1997 | 0.47 | 143 |
| 1996 | 0.49 | 134 |
| 1995 | 0.51 | 123 |
| 1994 | 0.5 | 115 |
| 1993 | 1.25 | 72 |
| 1992 | 0.9 | 67 |
| 1991 | 0.96 | 70 |
| 1990 | 0.62 | 84 |
| 1989 | 0.91 | 60 |
| 1988 | 4.21 | 15 |
| 1987 | 2.12 | 27 |
| 1986 | 0.95 | 39 |