| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 52.96 | 169 |
| 2015 | 51.31 | 172 |
| 2014 | 49.77 | 173 |
| 2013 | 48.87 | 174 |
| 2012 | 50.04 | 173 |
| 2011 | 52.78 | 171 |
| 2010 | 54.3 | 168 |
| 2009 | 55.93 | 166 |
| 2008 | 61.8 | 146 |
| 2007 | 64.19 | 127 |
| 2006 | 64.18 | 124 |
| 2005 | 63.43 | 129 |
| 2004 | 61.95 | 143 |
| 2003 | 61.46 | 144 |
| 2002 | 61.12 | 145 |
| 2001 | 60.98 | 150 |
| 2000 | 60.06 | 154 |
| 1999 | 58.74 | 160 |
| 1998 | 56.58 | 171 |
| 1997 | 54.74 | 176 |
| 1996 | 53.78 | 175 |
| 1995 | 53.51 | 178 |
| 1994 | 52.81 | 176 |
| 1993 | 54.32 | 175 |
| 1992 | 58.19 | 168 |
| 1991 | 60.36 | 162 |