| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 72.7 | 22 |
| 2015 | 72.73 | 22 |
| 2014 | 72.79 | 24 |
| 2013 | 73.1 | 22 |
| 2012 | 72.13 | 24 |
| 2011 | 72.14 | 23 |
| 2010 | 72.13 | 22 |
| 2009 | 72.17 | 22 |
| 2008 | 72.23 | 24 |
| 2007 | 72.21 | 23 |
| 2006 | 72.27 | 22 |
| 2005 | 72.36 | 23 |
| 2004 | 72.39 | 21 |
| 2003 | 72.57 | 22 |
| 2002 | 72.46 | 23 |
| 2001 | 72.53 | 22 |
| 2000 | 72.63 | 22 |
| 1999 | 72.55 | 22 |
| 1998 | 72.62 | 20 |
| 1997 | 72.66 | 21 |
| 1996 | 72.9 | 20 |
| 1995 | 72.75 | 21 |
| 1994 | 72.78 | 21 |
| 1993 | 72.95 | 20 |
| 1992 | 72.97 | 20 |
| 1991 | 72.86 | 22 |