| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 64.78 | 78 |
| 2015 | 64.87 | 77 |
| 2014 | 64.92 | 76 |
| 2013 | 65.12 | 76 |
| 2012 | 65.57 | 73 |
| 2011 | 65.44 | 73 |
| 2010 | 65.68 | 69 |
| 2009 | 66.29 | 66 |
| 2008 | 67.21 | 57 |
| 2007 | 66.13 | 65 |
| 2006 | 65.35 | 71 |
| 2005 | 65.33 | 69 |
| 2004 | 65.42 | 69 |
| 2003 | 65.53 | 67 |
| 2002 | 66.16 | 66 |
| 2001 | 65.99 | 66 |
| 2000 | 66.13 | 62 |
| 1999 | 65.93 | 66 |
| 1998 | 66.03 | 62 |
| 1997 | 65.25 | 69 |
| 1996 | 64.07 | 78 |
| 1995 | 62.61 | 88 |
| 1994 | 61.89 | 94 |
| 1993 | 61.48 | 97 |
| 1992 | 61.78 | 95 |
| 1991 | 62.04 | 93 |
| 1990 | 63.1 | 90 |