| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 29.23 | 180 |
| 2015 | 28 | 176 |
| 2014 | 26.48 | 174 |
| 2013 | 24.92 | 171 |
| 2012 | 23.36 | 167 |
| 2011 | 21.88 | 165 |
| 2010 | 20.5 | 163 |
| 2009 | 19.38 | 158 |
| 2008 | 18.34 | 151 |
| 2007 | 17.39 | 149 |
| 2006 | 16.52 | 147 |
| 2005 | 15.73 | 143 |
| 2004 | 15.04 | 140 |
| 2003 | 14.48 | 140 |
| 2002 | 14 | 139 |
| 2001 | 13.6 | 139 |
| 2000 | 13.23 | 138 |
| 1999 | 12.71 | 136 |
| 1998 | 12.28 | 136 |
| 1997 | 11.93 | 136 |
| 1996 | 11.66 | 135 |
| 1995 | 11.38 | 134 |
| 1994 | 11.03 | 130 |
| 1993 | 10.64 | 130 |
| 1992 | 10.23 | 129 |
| 1991 | 9.87 | 129 |
| 1990 | 9.58 | 128 |
| 1989 | 9.36 | 126 |
| 1988 | 9.18 | 126 |
| 1987 | 9.04 | 126 |
| 1986 | 8.89 | 123 |