| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 54.28 | 165 |
| 2015 | 53.89 | 165 |
| 2014 | 53.39 | 167 |
| 2013 | 53.51 | 168 |
| 2012 | 53.53 | 167 |
| 2011 | 55.23 | 163 |
| 2010 | 55.65 | 165 |
| 2009 | 60.16 | 148 |
| 2008 | 63.3 | 134 |
| 2007 | 60.9 | 150 |
| 2006 | 67.01 | 103 |
| 2005 | 66.18 | 107 |
| 2004 | 69.25 | 89 |
| 2003 | 69.24 | 87 |
| 2002 | 68.88 | 89 |
| 2001 | 70.16 | 83 |
| 2000 | 70.73 | 79 |
| 1999 | 68.95 | 90 |
| 1998 | 69.43 | 93 |
| 1997 | 69.72 | 91 |
| 1996 | 72.69 | 70 |
| 1995 | 72.49 | 76 |
| 1994 | 72.93 | 74 |
| 1993 | 75.6 | 60 |
| 1992 | 75.12 | 65 |
| 1991 | 76.04 | 59 |