| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 52.8 | 96 |
| 2015 | 53.092 | 119 |
| 2014 | 48.535 | 137 |
| 2013 | 47.014 | 144 |
| 2012 | 44.801 | 145 |
| 2011 | 47.4 | 141 |
| 2010 | 50.2 | 129 |
| 2009 | 36.954 | 166 |
| 2008 | 27.726 | 168 |
| 2007 | 28.476 | 171 |
| 2006 | 30.299 | 169 |
| 2005 | 26.727 | 170 |
| 2004 | 27.175 | 172 |
| 2003 | 23.798 | 169 |
| 2002 | 17.864 | 171 |
| 2001 | 19.386 | 170 |
| 2000 | 19.679 | 167 |
| 1999 | 16.614 | 161 |
| 1998 | 14.266 | 161 |
| 1997 | 12.808 | 163 |
| 1996 | 4.141 | 161 |
| 1995 | 12.908 | 160 |
| 1994 | 33.51 | 126 |
| 1993 | 34.289 | 119 |
| 1992 | 33.11 | 114 |
| 1991 | 27.644 | 121 |
| 1990 | 28.824 | 119 |
| 1989 | 37.594 | 89 |
| 1988 | 38.024 | 86 |
| 1987 | 38.62 | 84 |
| 1986 | 34.856 | 93 |