Year % of people at risk 2003 66.8 2004 55.7 2005 55.2 2006 51 2007 61.8 2008 70.9 2009 61.3 2010 67.7 2011 70.8 2012 71.4 2013 63.3 2014 64.6 2015 64.3 2016 67.7 2017 69.2