| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 62.56 | 101 |
| 2015 | 62.67 | 101 |
| 2014 | 62.81 | 99 |
| 2013 | 62.98 | 97 |
| 2012 | 63.16 | 96 |
| 2011 | 63.37 | 92 |
| 2010 | 63.58 | 91 |
| 2009 | 63.79 | 90 |
| 2008 | 64 | 90 |
| 2007 | 64.12 | 90 |
| 2006 | 64.15 | 88 |
| 2005 | 64.18 | 86 |
| 2004 | 64.22 | 85 |
| 2003 | 64.25 | 84 |
| 2002 | 64.28 | 81 |
| 2001 | 64.39 | 81 |
| 2000 | 64.67 | 79 |
| 1999 | 64.95 | 78 |
| 1998 | 65.23 | 77 |
| 1997 | 65.5 | 77 |
| 1996 | 65.78 | 77 |
| 1995 | 66.06 | 76 |
| 1994 | 66.33 | 75 |
| 1993 | 66.61 | 74 |
| 1992 | 66.88 | 71 |
| 1991 | 67.15 | 69 |
| 1990 | 67.42 | 67 |
| 1989 | 67.69 | 65 |
| 1988 | 67.71 | 63 |
| 1987 | 67.5 | 63 |
| 1986 | 67.3 | 59 |