| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 60.36 | 65 |
| 2015 | 58.76 | 97 |
| 2014 | 54.818 | 109 |
| 2013 | 52.966 | 119 |
| 2012 | 50.632 | 130 |
| 2011 | 49.364 | 132 |
| 2010 | 50.789 | 127 |
| 2009 | 28.745 | 172 |
| 2008 | 25.667 | 171 |
| 2007 | 26.634 | 173 |
| 2006 | 26.084 | 172 |
| 2005 | 23.737 | 172 |
| 2004 | 23.699 | 173 |
| 2003 | 20.542 | 172 |
| 2002 | 20.916 | 170 |
| 2001 | 25.374 | 168 |
| 2000 | 21.761 | 166 |
| 1999 | 26.836 | 157 |
| 1998 | 27.393 | 158 |
| 1997 | 21.831 | 160 |
| 1996 | 20.349 | 157 |
| 1995 | 21.923 | 156 |
| 1994 | 28.33 | 133 |
| 1993 | 23.413 | 133 |
| 1992 | 19.736 | 134 |
| 1991 | 23.019 | 130 |
| 1990 | 23.205 | 125 |
| 1989 | 24.247 | 110 |
| 1988 | 26.564 | 105 |
| 1987 | 27.437 | 105 |
| 1986 | 32.509 | 98 |