| 时间 |
值 （%） |
世界排名 |
| 2016 |
4.1 |
52 |
| 2015 |
-.4 |
172 |
| 2014 |
4.8 |
54 |
| 2013 |
9.4 |
10 |
| 2012 |
-.7 |
167 |
| 2011 |
6.8 |
40 |
| 2010 |
7.1 |
44 |
| 2009 |
-6 |
182 |
| 2008 |
7.8 |
32 |
| 2007 |
3 |
160 |
| 2006 |
4.8 |
121 |
| 2005 |
7.5 |
42 |
| 2004 |
7.4 |
48 |
| 2003 |
6.6 |
51 |
| 2002 |
7.8 |
18 |
| 2001 |
6.1 |
30 |
| 2000 |
2.11 |
150 |
| 1999 |
-3.37 |
182 |
| 1998 |
-6.54 |
190 |
| 1997 |
1.65 |
157 |
| 1996 |
-5.88 |
187 |