| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 3.95 | 101 |
| 2015 | 23.82 | 13 |
| 2014 | 19.34 | 19 |
| 2013 | 19.19 | 25 |
| 2012 | 9.95 | 85 |
| 2011 | 17.99 | 39 |
| 2010 | 22.15 | 34 |
| 2009 | -2.65 | 153 |
| 2008 | 28.57 | 26 |
| 2007 | 3.82 | 156 |
| 2006 | 11.63 | 125 |
| 2005 | 0.03 | 160 |
| 2004 | -3.05 | 158 |
| 2003 | 15.2 | 66 |
| 2002 | 25.93 | 32 |
| 2001 | 14.58 | 81 |
| 2000 | 9.54 | 104 |
| 1999 | 12.97 | 87 |
| 1998 | 26.65 | 19 |
| 1997 | 28.65 | 33 |
| 1996 | 34.1 | 29 |
| 1995 | 36.88 | 27 |
| 1994 | 42.18 | 31 |
| 1993 | 36.51 | 27 |
| 1992 | 50.51 | 20 |
| 1991 | 81.85 | 9 |
| 1990 | 116.37 | 8 |
| 1989 | 103.51 | 6 |
| 1988 | 82.02 | 8 |
| 1987 | 56.54 | 14 |
| 1986 | 93.52 | 7 |