| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 62.35 | 47 |
| 2015 | 62.84 | 47 |
| 2014 | 63.32 | 47 |
| 2013 | 63.79 | 46 |
| 2012 | 64.25 | 47 |
| 2011 | 64.7 | 46 |
| 2010 | 65.14 | 47 |
| 2009 | 65.57 | 47 |
| 2008 | 66 | 47 |
| 2007 | 66.4 | 46 |
| 2006 | 66.8 | 47 |
| 2005 | 67.19 | 46 |
| 2004 | 67.57 | 45 |
| 2003 | 67.94 | 45 |
| 2002 | 68.3 | 45 |
| 2001 | 68.65 | 44 |
| 2000 | 68.98 | 44 |
| 1999 | 69.31 | 44 |
| 1998 | 69.63 | 43 |
| 1997 | 69.93 | 43 |
| 1996 | 70.23 | 44 |
| 1995 | 70.53 | 44 |
| 1994 | 70.82 | 42 |
| 1993 | 71.11 | 42 |
| 1992 | 71.4 | 43 |
| 1991 | 71.69 | 42 |
| 1990 | 71.97 | 43 |
| 1989 | 72.26 | 46 |
| 1988 | 72.54 | 46 |
| 1987 | 72.82 | 47 |
| 1986 | 73.1 | 48 |