| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 65.61 | 53 |
| 2015 | 59.98 | 64 |
| 2014 | 67.25 | 51 |
| 2013 | 67.14 | 48 |
| 2012 | 66.97 | 46 |
| 2011 | 65.76 | 49 |
| 2010 | 66.3 | 54 |
| 2009 | 63.75 | 57 |
| 2008 | 60.91 | 55 |
| 2007 | 60.33 | 56 |
| 2006 | 64.37 | 44 |
| 2005 | 97.44 | 20 |
| 2004 | 97.23 | 21 |
| 2003 | 96.06 | 20 |
| 2002 | 91.63 | 22 |
| 2001 | 89.5 | 18 |
| 2000 | 76.83 | 23 |
| 1999 | 73.47 | 27 |
| 1998 | 76.32 | 21 |
| 1997 | 71.68 | 23 |
| 1996 | 69.65 | 25 |
| 1995 | 64.54 | 30 |
| 1994 | 61.38 | 29 |
| 1993 | 69.2 | 24 |
| 1992 | 71.37 | 20 |
| 1991 | 54.07 | 35 |
| 1990 | 75.74 | 13 |
| 1989 | 75.58 | 15 |
| 1988 | 126.02 | 4 |
| 1987 | 111.36 | 5 |
| 1986 | 124.02 | 4 |