| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 53.82 | 133 |
| 2015 | 54.75 | 134 |
| 2014 | 55.75 | 134 |
| 2013 | 56.85 | 134 |
| 2012 | 58 | 134 |
| 2011 | 59.12 | 133 |
| 2010 | 60.15 | 133 |
| 2009 | 61.3 | 133 |
| 2008 | 62.39 | 133 |
| 2007 | 63.45 | 133 |
| 2006 | 64.57 | 132 |
| 2005 | 65.79 | 132 |
| 2004 | 67.07 | 131 |
| 2003 | 68.41 | 132 |
| 2002 | 69.79 | 132 |
| 2001 | 71.19 | 130 |
| 2000 | 72.55 | 131 |
| 1999 | 74.12 | 131 |
| 1998 | 75.75 | 134 |
| 1997 | 77.33 | 136 |
| 1996 | 78.7 | 137 |
| 1995 | 79.73 | 139 |
| 1994 | 80.7 | 137 |
| 1993 | 81.25 | 136 |
| 1992 | 81.44 | 133 |
| 1991 | 81.49 | 130 |
| 1990 | 81.57 | 130 |
| 1989 | 81.3 | 128 |
| 1988 | 80.93 | 128 |
| 1987 | 80.44 | 125 |
| 1986 | 79.68 | 125 |