Year	% of people at risk
2003	20.3
2004	21
2005	18.4
2006	15.7
2007	15.2
2008	14.4
2009	12
2010	10.1
2011	9.9
2012	11.5
2013	10.7
2014	11.1
2015	11.1
2016	11.1
2017	11.3