| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 64.73 | 80 |
| 2015 | 64.72 | 79 |
| 2014 | 64.7 | 81 |
| 2013 | 64.24 | 85 |
| 2012 | 64.23 | 83 |
| 2011 | 64.81 | 77 |
| 2010 | 64.81 | 78 |
| 2009 | 65.11 | 76 |
| 2008 | 65.23 | 74 |
| 2007 | 64.98 | 77 |
| 2006 | 65.58 | 70 |
| 2005 | 66.46 | 61 |
| 2004 | 67.36 | 54 |
| 2003 | 68.27 | 52 |
| 2002 | 69.18 | 46 |
| 2001 | 67.63 | 55 |
| 2000 | 65.65 | 66 |
| 1999 | 66.21 | 63 |
| 1998 | 65.64 | 64 |
| 1997 | 64.58 | 75 |
| 1996 | 63.3 | 85 |
| 1995 | 61.72 | 95 |
| 1994 | 59.21 | 120 |
| 1993 | 57.97 | 131 |
| 1992 | 59.47 | 116 |
| 1991 | 60.12 | 106 |
| 1990 | 58.89 | 119 |