Year	% of people at risk
2003	16.1
2004	11
2005	9.1
2006	8
2007	4.3
2008	4.5
2009	5.8
2010	7.2
2011	7
2012	6.5
2013	8.2
2014	7.9
2015	5.7
2016	4.1
2017	3.7
2018	3.1
2019	3
2020	2.5