| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 19.12 | 109 |
| 2015 | 15.69 | 144 |
| 2014 | 15.94 | 147 |
| 2013 | 16.03 | 152 |
| 2012 | 16.05 | 152 |
| 2011 | 15.99 | 153 |
| 2010 | 15.94 | 153 |
| 2009 | 15.95 | 152 |
| 2008 | 16.2 | 156 |
| 2007 | 16.26 | 158 |
| 2006 | 16.14 | 154 |
| 2005 | 15.77 | 154 |
| 2004 | 15.95 | 156 |
| 2003 | 15.37 | 155 |
| 2002 | 14.41 | 157 |
| 2001 | 14.58 | 153 |
| 2000 | 14.23 | 157 |
| 1999 | 13.76 | 154 |
| 1998 | 13.63 | 152 |
| 1997 | 13.45 | 156 |
| 1996 | 11.36 | 154 |
| 1995 | 9.22 | 158 |
| 1994 | 9.72 | 140 |
| 1993 | 11.89 | 133 |
| 1992 | 12.51 | 128 |
| 1991 | 13.11 | 124 |
| 1990 | 12.83 | 123 |
| 1989 | 14.78 | 104 |
| 1988 | 13.16 | 103 |
| 1987 | 13.71 | 101 |
| 1986 | 12.86 | 99 |