| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 35.121 | 133 |
| 2015 | 33.423 | 165 |
| 2014 | 32.302 | 165 |
| 2013 | 34.255 | 169 |
| 2012 | 31.934 | 170 |
| 2011 | 33.811 | 166 |
| 2010 | 34.331 | 170 |
| 2009 | 38.564 | 159 |
| 2008 | 33.36 | 162 |
| 2007 | 34.057 | 167 |
| 2006 | 33.077 | 165 |
| 2005 | 35.739 | 160 |
| 2004 | 29.405 | 169 |
| 2003 | 42.039 | 139 |
| 2002 | 45.717 | 128 |
| 2001 | 44.615 | 132 |
| 2000 | 46.342 | 124 |
| 1999 | 47.5 | 115 |
| 1998 | 45.713 | 123 |
| 1997 | 45.819 | 115 |
| 1996 | 48.066 | 101 |
| 1995 | 50.522 | 98 |
| 1994 | 50.241 | 78 |
| 1993 | 53.455 | 59 |
| 1992 | 51.222 | 65 |
| 1991 | 50.242 | 61 |
| 1990 | 53.003 | 50 |
| 1989 | 51.674 | 44 |
| 1988 | 49.734 | 52 |
| 1987 | 52.331 | 45 |
| 1986 | 52.386 | 44 |