| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 60.69 | 103 |
| 2015 | 60.2 | 104 |
| 2014 | 59.7 | 102 |
| 2013 | 59.2 | 102 |
| 2012 | 58.7 | 103 |
| 2011 | 58.19 | 103 |
| 2010 | 57.68 | 103 |
| 2009 | 57.18 | 104 |
| 2008 | 56.67 | 107 |
| 2007 | 56.15 | 107 |
| 2006 | 55.64 | 107 |
| 2005 | 55.13 | 108 |
| 2004 | 54.64 | 110 |
| 2003 | 54.32 | 110 |
| 2002 | 53.99 | 110 |
| 2001 | 53.66 | 110 |
| 2000 | 53.34 | 109 |
| 1999 | 53.01 | 108 |
| 1998 | 52.68 | 109 |
| 1997 | 52.35 | 110 |
| 1996 | 52.02 | 109 |
| 1995 | 51.69 | 111 |
| 1994 | 51.3 | 111 |
| 1993 | 50.57 | 112 |
| 1992 | 49.84 | 115 |
| 1991 | 49.12 | 117 |
| 1990 | 48.39 | 117 |
| 1989 | 47.67 | 114 |
| 1988 | 46.94 | 115 |
| 1987 | 46.22 | 116 |
| 1986 | 45.5 | 116 |