| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 65.68 | 109 |
| 2015 | 65.39 | 113 |
| 2014 | 64.94 | 118 |
| 2013 | 64.92 | 116 |
| 2012 | 64.76 | 115 |
| 2011 | 64.5 | 119 |
| 2010 | 64.18 | 122 |
| 2009 | 63.94 | 122 |
| 2008 | 64.14 | 128 |
| 2007 | 63.88 | 132 |
| 2006 | 63.63 | 131 |
| 2005 | 63.47 | 128 |
| 2004 | 64.07 | 121 |
| 2003 | 64.73 | 121 |
| 2002 | 65.67 | 110 |
| 2001 | 66.62 | 110 |
| 2000 | 67.58 | 106 |
| 1999 | 68.55 | 95 |
| 1998 | 67.86 | 98 |
| 1997 | 68.76 | 95 |
| 1996 | 69.65 | 92 |
| 1995 | 70.54 | 85 |
| 1994 | 71.34 | 84 |
| 1993 | 71.39 | 86 |
| 1992 | 72.01 | 82 |
| 1991 | 72.57 | 80 |