Year | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 |
Index | 0.97 | 0.99 | 0.64 | 0.07 | 0.70 | 0.7 | 0.63 | 0.57 | 0.53 | 0.55 | 0.51 | 0.5 | 0.5 | 0.48 | 0.47 | 0.47 |