Year % of people at risk 2003 73.8214534902506 2004 69.92827636878586 2005 74.49472904233417 2006 68.02050826418875 2007 67.81745530576221 2008 67.49249463993938 2009 65.44811794673268 2010 63.56503179112793 2011 67.21021072814095 2012 66.94607646265416 2013 60.533336853069144 2014 57.40640151550086 2015 58.299372229030176 2016 56.646099101688506 2017 56.56800498254631 2018 57.47516461085156