| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 54.1 | 128 |
| 2015 | 53.73 | 128 |
| 2014 | 53.35 | 127 |
| 2013 | 52.98 | 126 |
| 2012 | 52.6 | 125 |
| 2011 | 52.21 | 124 |
| 2010 | 51.83 | 124 |
| 2009 | 51.44 | 122 |
| 2008 | 51.05 | 122 |
| 2007 | 50.66 | 122 |
| 2006 | 50.26 | 123 |
| 2005 | 49.87 | 122 |
| 2004 | 49.48 | 122 |
| 2003 | 49.09 | 122 |
| 2002 | 48.69 | 122 |
| 2001 | 48.3 | 122 |
| 2000 | 47.91 | 122 |
| 1999 | 47.52 | 123 |
| 1998 | 47.12 | 124 |
| 1997 | 46.73 | 124 |
| 1996 | 46.28 | 123 |
| 1995 | 45.5 | 125 |
| 1994 | 44.71 | 126 |
| 1993 | 43.93 | 126 |
| 1992 | 43.16 | 128 |
| 1991 | 42.38 | 128 |
| 1990 | 41.61 | 128 |
| 1989 | 40.85 | 125 |
| 1988 | 40.09 | 127 |
| 1987 | 39.33 | 128 |
| 1986 | 38.68 | 128 |