| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 23.98 | 85 |
| 2015 | 23.36 | 101 |
| 2014 | 24.1 | 100 |
| 2013 | 23.57 | 108 |
| 2012 | 24.23 | 104 |
| 2011 | 24.61 | 103 |
| 2010 | 23.28 | 111 |
| 2009 | 23.31 | 105 |
| 2008 | 22.86 | 112 |
| 2007 | 24.12 | 110 |
| 2006 | 23.9 | 112 |
| 2005 | 23.63 | 115 |
| 2004 | 24.81 | 111 |
| 2003 | 24.42 | 106 |
| 2002 | 25.47 | 100 |
| 2001 | 24.52 | 107 |
| 2000 | 23.23 | 113 |
| 1999 | 23.48 | 113 |
| 1998 | 23.69 | 112 |
| 1997 | 23.48 | 112 |
| 1996 | 24.34 | 105 |
| 1995 | 23.78 | 110 |
| 1994 | 23.98 | 94 |
| 1993 | 23.49 | 96 |
| 1992 | 24.24 | 88 |
| 1991 | 22.21 | 96 |
| 1990 | 22.17 | 93 |
| 1989 | 20.87 | 84 |
| 1988 | 21.72 | 79 |
| 1987 | 20.38 | 81 |
| 1986 | 20.19 | 76 |