| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 59.74 | 81 |
| 2015 | 59.49 | 84 |
| 2014 | 59.14 | 83 |
| 2013 | 58.93 | 86 |
| 2012 | 59.36 | 79 |
| 2011 | 58.03 | 91 |
| 2010 | 58.68 | 81 |
| 2009 | 57.72 | 91 |
| 2008 | 59.62 | 80 |
| 2007 | 59.5 | 81 |
| 2006 | 59.39 | 77 |
| 2005 | 58.48 | 83 |
| 2004 | 58.51 | 76 |
| 2003 | 57.65 | 85 |
| 2002 | 58.22 | 81 |
| 2001 | 58.25 | 86 |
| 2000 | 58.83 | 73 |
| 1999 | 59 | 72 |
| 1998 | 59.05 | 73 |
| 1997 | 58.91 | 78 |
| 1996 | 56.82 | 90 |
| 1995 | 55.77 | 102 |
| 1994 | 57.4 | 85 |
| 1993 | 58.17 | 79 |
| 1992 | 57.55 | 86 |
| 1991 | 56.93 | 92 |