Year	% of people at risk
2003	7.6
2004	9.4
2005	6.1
2006	4.1
2007	3.2
2008	3.3
2009	5.7
2010	3.4
2011	2.5
2012	3.8
2013	3.8
2014	4.8
2015	4.2
2016	4.6
2017	3.5
2018	2.4
2019	2.2
2020	2.4
2021	2.1
2022	2.8