| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 59.71 | 122 |
| 2015 | 60.01 | 121 |
| 2014 | 60.38 | 118 |
| 2013 | 60.64 | 116 |
| 2012 | 60.35 | 115 |
| 2011 | 60.64 | 113 |
| 2010 | 61.19 | 106 |
| 2009 | 62.2 | 101 |
| 2008 | 63.35 | 94 |
| 2007 | 63.82 | 90 |
| 2006 | 63.3 | 93 |
| 2005 | 62.56 | 93 |
| 2004 | 60.72 | 105 |
| 2003 | 60.21 | 111 |
| 2002 | 59.94 | 112 |
| 2001 | 59.55 | 117 |
| 2000 | 59.38 | 120 |
| 1999 | 58.49 | 129 |
| 1998 | 57.02 | 135 |
| 1997 | 55.33 | 143 |
| 1996 | 54.77 | 149 |
| 1995 | 53.86 | 153 |
| 1994 | 53.65 | 154 |
| 1993 | 52.93 | 156 |
| 1992 | 52.32 | 160 |
| 1991 | 53.29 | 158 |
| 1990 | 52.93 | 159 |