| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 25.34 | 165 |
| 2015 | 29.04 | 170 |
| 2014 | 30.99 | 173 |
| 2013 | 30.03 | 179 |
| 2012 | 27.15 | 180 |
| 2011 | 27.26 | 186 |
| 2010 | 25.68 | 185 |
| 2009 | 21.65 | 186 |
| 2008 | 30.65 | 184 |
| 2007 | 29.6 | 185 |
| 2006 | 27.06 | 185 |
| 2005 | 23.36 | 185 |
| 2004 | 21.19 | 189 |
| 2003 | 19.23 | 186 |
| 2002 | 18.32 | 186 |
| 2001 | 17.49 | 186 |
| 2000 | 17.57 | 184 |
| 1999 | 15.95 | 185 |
| 1998 | 16.58 | 183 |
| 1997 | 17.21 | 181 |
| 1996 | 15.72 | 182 |
| 1995 | 14.3 | 181 |
| 1994 | 13.7 | 175 |
| 1993 | 13.52 | 159 |
| 1992 | 14.7 | 156 |
| 1991 | 15.42 | 149 |
| 1990 | 16.65 | 147 |
| 1989 | 15.85 | 145 |
| 1988 | 14.82 | 147 |
| 1987 | 15.21 | 142 |
| 1986 | 16.3 | 136 |