| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 58.95 | 129 |
| 2015 | 59.15 | 127 |
| 2014 | 59.01 | 127 |
| 2013 | 58.29 | 132 |
| 2012 | 58.02 | 132 |
| 2011 | 56.85 | 134 |
| 2010 | 56.98 | 133 |
| 2009 | 57.28 | 133 |
| 2008 | 55.01 | 146 |
| 2007 | 54.97 | 145 |
| 2006 | 55.28 | 144 |
| 2005 | 54.8 | 143 |
| 2004 | 54.1 | 147 |
| 2003 | 53.2 | 151 |
| 2002 | 53.87 | 150 |
| 2001 | 52.82 | 155 |
| 2000 | 53.37 | 154 |
| 1999 | 52.06 | 157 |
| 1998 | 51.2 | 161 |
| 1997 | 51.01 | 163 |
| 1996 | 50.81 | 165 |
| 1995 | 50.29 | 166 |
| 1994 | 52.08 | 159 |
| 1993 | 52.1 | 157 |
| 1992 | 52.67 | 159 |
| 1991 | 51.89 | 160 |
| 1990 | 50.7 | 166 |