| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2015 | 22.59 | 109 |
| 2014 | 22.38 | 110 |
| 2013 | 23.42 | 111 |
| 2012 | 23.63 | 111 |
| 2011 | 22.51 | 119 |
| 2010 | 23.13 | 113 |
| 2009 | 22.84 | 109 |
| 2008 | 22.72 | 114 |
| 2007 | 22.78 | 116 |
| 2006 | 22.46 | 118 |
| 2005 | 21.78 | 123 |
| 2004 | 22.27 | 125 |
| 2003 | 22.74 | 121 |
| 2002 | 23.93 | 112 |
| 2001 | 25.18 | 101 |
| 2000 | 25.87 | 95 |
| 1999 | 25.75 | 96 |
| 1998 | 26.29 | 91 |
| 1997 | 27.95 | 86 |
| 1996 | 27.09 | 90 |
| 1995 | 22.88 | 112 |
| 1994 | 20.52 | 110 |
| 1993 | 17.48 | 110 |
| 1992 | 17.77 | 110 |
| 1991 | 17.73 | 111 |
| 1990 | 18.63 | 105 |
| 1989 | 18.34 | 94 |
| 1988 | 18.03 | 88 |
| 1987 | 17.53 | 88 |
| 1986 | 19.08 | 82 |