| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 17.54 | 19 |
| 2015 | -4.83 | 144 |
| 2014 | 14.94 | 35 |
| 2013 | 13.96 | 55 |
| 2012 | 16.96 | 37 |
| 2011 | 16.62 | 46 |
| 2010 | 16.44 | 55 |
| 2009 | 7.09 | 105 |
| 2008 | 23.9 | 37 |
| 2007 | 16.11 | 100 |
| 2006 | 12.97 | 115 |
| 2005 | 19.56 | 53 |
| 2004 | 24.37 | 33 |
| 2003 | 17.89 | 53 |
| 2002 | 36.12 | 17 |
| 2001 | 31.76 | 38 |
| 2000 | 47 | 14 |
| 1999 | -50.81 | 158 |
| 1998 | -16.37 | 155 |
| 1997 | 9.08 | 109 |
| 1996 | 12.43 | 90 |
| 1995 | 6.77 | 118 |
| 1994 | 39.1 | 34 |
| 1993 | 46.76 | 20 |
| 1992 | 4.44 | 105 |
| 1991 | 5.99 | 94 |
| 1990 | 50.33 | 18 |
| 1989 | -7.64 | 125 |
| 1988 | -20.62 | 125 |
| 1987 | -5.21 | 118 |
| 1986 | -19.93 | 122 |