| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 60.06 | 52 |
| 2015 | 60.23 | 53 |
| 2014 | 60.38 | 55 |
| 2013 | 60.51 | 55 |
| 2012 | 60.62 | 56 |
| 2011 | 60.71 | 58 |
| 2010 | 60.77 | 59 |
| 2009 | 60.82 | 60 |
| 2008 | 60.84 | 62 |
| 2007 | 60.84 | 63 |
| 2006 | 60.82 | 64 |
| 2005 | 60.8 | 65 |
| 2004 | 60.78 | 65 |
| 2003 | 60.76 | 67 |
| 2002 | 60.74 | 70 |
| 2001 | 60.72 | 70 |
| 2000 | 60.69 | 70 |
| 1999 | 60.67 | 70 |
| 1998 | 60.65 | 70 |
| 1997 | 60.63 | 72 |
| 1996 | 60.61 | 72 |
| 1995 | 60.59 | 73 |
| 1994 | 60.57 | 74 |
| 1993 | 60.55 | 75 |
| 1992 | 60.53 | 74 |
| 1991 | 60.51 | 75 |
| 1990 | 60.75 | 74 |
| 1989 | 61.09 | 75 |
| 1988 | 61.42 | 76 |
| 1987 | 61.75 | 76 |
| 1986 | 62.08 | 78 |