| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 24.4 | 163 |
| 2015 | 23.61 | 163 |
| 2014 | 22.63 | 162 |
| 2013 | 21.72 | 161 |
| 2012 | 20.92 | 160 |
| 2011 | 20.25 | 159 |
| 2010 | 19.69 | 158 |
| 2009 | 19.25 | 156 |
| 2008 | 18.87 | 156 |
| 2007 | 18.57 | 152 |
| 2006 | 18.32 | 152 |
| 2005 | 18.12 | 152 |
| 2004 | 17.57 | 150 |
| 2003 | 17.06 | 149 |
| 2002 | 16.61 | 149 |
| 2001 | 16.21 | 149 |
| 2000 | 15.85 | 147 |
| 1999 | 15.32 | 146 |
| 1998 | 14.81 | 145 |
| 1997 | 14.33 | 142 |
| 1996 | 13.84 | 141 |
| 1995 | 13.37 | 139 |
| 1994 | 12.97 | 140 |
| 1993 | 12.59 | 138 |
| 1992 | 12.21 | 138 |
| 1991 | 11.86 | 139 |
| 1990 | 11.52 | 138 |
| 1989 | 11.18 | 135 |
| 1988 | 10.84 | 136 |
| 1987 | 10.51 | 135 |
| 1986 | 10.19 | 134 |