| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 62.4 | 136 |
| 2015 | 62.38 | 135 |
| 2014 | 62.13 | 137 |
| 2013 | 61.81 | 140 |
| 2012 | 61.78 | 140 |
| 2011 | 62.36 | 137 |
| 2010 | 61.56 | 143 |
| 2009 | 61.52 | 141 |
| 2008 | 62.71 | 139 |
| 2007 | 63.59 | 137 |
| 2006 | 64.04 | 126 |
| 2005 | 64.45 | 122 |
| 2004 | 64.71 | 119 |
| 2003 | 65.65 | 110 |
| 2002 | 65.81 | 108 |
| 2001 | 67.46 | 103 |
| 2000 | 66.08 | 111 |
| 1999 | 66.61 | 108 |
| 1998 | 67.26 | 106 |
| 1997 | 67.68 | 105 |
| 1996 | 68.19 | 102 |
| 1995 | 68.48 | 101 |
| 1994 | 68.74 | 98 |
| 1993 | 69.36 | 98 |
| 1992 | 70.13 | 93 |
| 1991 | 70.54 | 92 |