| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 27.08 | 163 |
| 2015 | 27.24 | 172 |
| 2014 | 29.43 | 177 |
| 2013 | 21.67 | 185 |
| 2012 | 24.11 | 183 |
| 2011 | 22.6 | 189 |
| 2010 | 22.15 | 188 |
| 2009 | 19.68 | 188 |
| 2008 | 22.67 | 189 |
| 2007 | 25.13 | 188 |
| 2006 | 24.66 | 187 |
| 2005 | 22.44 | 187 |
| 2004 | 22.45 | 188 |
| 2003 | 21.58 | 184 |
| 2002 | 26.93 | 172 |
| 2001 | 26.72 | 170 |
| 2000 | 30.4 | 163 |
| 1999 | 27.71 | 164 |
| 1998 | 30.7 | 156 |
| 1997 | 32.42 | 158 |
| 1996 | 28.58 | 161 |
| 1995 | 31.02 | 160 |
| 1994 | 34.07 | 139 |
| 1993 | 18.38 | 153 |
| 1992 | 17.85 | 150 |
| 1991 | 15.83 | 148 |
| 1990 | 19.02 | 145 |
| 1989 | 23.02 | 138 |
| 1988 | 26.17 | 128 |
| 1987 | 27.81 | 124 |
| 1986 | 20.76 | 133 |