| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 24.61 | 147 |
| 2015 | 26.96 | 176 |
| 2014 | 24.69 | 182 |
| 2013 | 25.56 | 186 |
| 2012 | 24.77 | 185 |
| 2011 | 23.7 | 189 |
| 2010 | 22.52 | 188 |
| 2009 | 22.11 | 188 |
| 2008 | 27.26 | 187 |
| 2007 | 25.29 | 188 |
| 2006 | 26.04 | 187 |
| 2005 | 27.09 | 184 |
| 2004 | 29.68 | 184 |
| 2003 | 28.14 | 182 |
| 2002 | 27.62 | 182 |
| 2001 | 26.94 | 174 |
| 2000 | 22.64 | 178 |
| 1999 | 20.98 | 179 |
| 1998 | 16.44 | 180 |
| 1997 | 16.58 | 180 |
| 1996 | 15.64 | 178 |
| 1995 | 16.63 | 176 |
| 1994 | 19.33 | 169 |
| 1993 | 19.6 | 163 |
| 1992 | 19.25 | 162 |
| 1991 | 16.59 | 161 |
| 1990 | 15.16 | 156 |
| 1989 | 14.39 | 143 |
| 1988 | 16.58 | 136 |
| 1987 | 15.65 | 137 |
| 1986 | 15.17 | 133 |