| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 65.06 | 54 |
| 2015 | 58.39 | 68 |
| 2014 | 61.23 | 62 |
| 2013 | 59 | 59 |
| 2012 | 57.25 | 58 |
| 2011 | 58.18 | 60 |
| 2010 | 58.93 | 61 |
| 2009 | 59.01 | 64 |
| 2008 | 54.54 | 63 |
| 2007 | 58.66 | 59 |
| 2006 | 52.68 | 66 |
| 2005 | 54.95 | 55 |
| 2004 | 55.5 | 54 |
| 2003 | 57.15 | 49 |
| 2002 | 58.08 | 50 |
| 2001 | 53.91 | 54 |
| 2000 | 48.03 | 55 |
| 1999 | 52.66 | 51 |
| 1998 | 56.34 | 42 |
| 1997 | 49.72 | 50 |
| 1996 | 53.05 | 43 |
| 1995 | 54.33 | 43 |
| 1994 | 56.2 | 37 |
| 1993 | 56.13 | 40 |
| 1992 | 59.45 | 29 |
| 1991 | 56.38 | 31 |
| 1990 | 57.71 | 31 |
| 1989 | 57.86 | 31 |
| 1988 | 56.85 | 32 |
| 1987 | 56.68 | 29 |
| 1986 | 51.89 | 30 |