| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 0.78 | 84 |
| 2015 | 0.88 | 83 |
| 2014 | 1 | 75 |
| 2013 | 0.97 | 78 |
| 2012 | 0.92 | 81 |
| 2011 | 0.97 | 80 |
| 2010 | 0.9 | 84 |
| 2009 | 1.11 | 77 |
| 2008 | 1.13 | 80 |
| 2007 | 0.75 | 95 |
| 2006 | 0.48 | 113 |
| 2005 | 0.5 | 114 |
| 2004 | 0.54 | 114 |
| 2003 | 0.6 | 106 |
| 2002 | 0.61 | 103 |
| 2001 | 0.63 | 97 |
| 2000 | 0.75 | 88 |
| 1999 | 0.67 | 97 |
| 1998 | 0.49 | 107 |
| 1997 | 0.43 | 113 |
| 1996 | 0.63 | 105 |
| 1995 | 0.86 | 97 |
| 1994 | 0.99 | 90 |
| 1993 | 1.1 | 89 |
| 1992 | 1.3 | 79 |
| 1991 | -1 | 174 |
| 1990 | -4.42 | 199 |
| 1989 | -4.51 | 197 |
| 1988 | -4.48 | 196 |
| 1987 | -4.46 | 195 |
| 1986 | -4.44 | 197 |