Year % of people at risk 2004 67.2064531906264 2005 65.7832110274487 2006 63.2734067765834 2007 64.8518067137533 2008 68.453040168494 2009 63.3098260423961 2010 64.7438400385685 2011 65.7669096929933 2012 65.2412308663684 2013 61.7078697268331 2014 61.7148267770471 2015 60.451619556768 2016 61.0525132713137 2017 61.2880530046787