| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 59.11 | 111 |
| 2015 | 58.78 | 110 |
| 2014 | 58.46 | 108 |
| 2013 | 58.15 | 107 |
| 2012 | 57.84 | 106 |
| 2011 | 57.54 | 105 |
| 2010 | 57.26 | 105 |
| 2009 | 56.97 | 106 |
| 2008 | 56.7 | 106 |
| 2007 | 56.44 | 106 |
| 2006 | 56.18 | 106 |
| 2005 | 55.93 | 106 |
| 2004 | 55.7 | 107 |
| 2003 | 55.46 | 107 |
| 2002 | 55.22 | 107 |
| 2001 | 54.98 | 106 |
| 2000 | 54.74 | 105 |
| 1999 | 54.5 | 105 |
| 1998 | 54.26 | 104 |
| 1997 | 54.02 | 104 |
| 1996 | 53.78 | 104 |
| 1995 | 53.53 | 105 |
| 1994 | 53.3 | 104 |
| 1993 | 53.06 | 103 |
| 1992 | 52.82 | 104 |
| 1991 | 52.58 | 103 |
| 1990 | 52.34 | 102 |
| 1989 | 52.1 | 101 |
| 1988 | 51.86 | 99 |
| 1987 | 51.62 | 100 |
| 1986 | 51.38 | 100 |