Year	% of people at risk
2003	62.4
2004	58.8
2005	54.8
2006	54
2007	49.6
2008	47.2
2009	47.1
2010	44
2011	43.5
2012	38.3
2013	38.9
2014	35
2015	30.4
2016	28.1
2017	27.4