| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 16.76 | 164 |
| 2015 | 17.03 | 162 |
| 2014 | 17.6 | 166 |
| 2013 | 16.2 | 162 |
| 2012 | 17.3 | 162 |
| 2011 | 18.4 | 169 |
| 2010 | 19 | 169 |
| 2009 | 18.7 | 172 |
| 2008 | 16.4 | 168 |
| 2007 | 16.67 | 165 |
| 2006 | 16.97 | 166 |
| 2005 | 17.23 | 165 |
| 2004 | 17.47 | 163 |
| 2003 | 17.65 | 166 |
| 2002 | 17.81 | 165 |
| 2001 | 17.94 | 165 |
| 2000 | 18.02 | 168 |
| 1999 | 16.89 | 164 |
| 1998 | 17.34 | 164 |
| 1997 | 16.73 | 163 |
| 1996 | 18.17 | 167 |
| 1995 | 17.96 | 165 |
| 1994 | 17.8 | 160 |
| 1993 | 18.63 | 164 |
| 1992 | 18.05 | 165 |
| 1991 | 18.99 | 170 |