| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 75.38 | 21 |
| 2015 | 75.36 | 21 |
| 2014 | 75.33 | 21 |
| 2013 | 75.29 | 21 |
| 2012 | 75.22 | 20 |
| 2011 | 75.18 | 20 |
| 2010 | 75.11 | 19 |
| 2009 | 75.03 | 19 |
| 2008 | 74.95 | 19 |
| 2007 | 74.85 | 20 |
| 2006 | 74.75 | 20 |
| 2005 | 74.51 | 20 |
| 2004 | 74.22 | 19 |
| 2003 | 73.92 | 19 |
| 2002 | 73.69 | 18 |
| 2001 | 73.41 | 18 |
| 2000 | 73.11 | 20 |
| 1999 | 72.79 | 21 |
| 1998 | 72.53 | 21 |
| 1997 | 72.16 | 22 |
| 1996 | 71.91 | 24 |
| 1995 | 71.37 | 25 |
| 1994 | 71.14 | 24 |
| 1993 | 71.12 | 25 |
| 1992 | 70.69 | 26 |
| 1991 | 70.33 | 26 |