Year	% of people at risk
2003	5.9
2004	9.1
2005	5
2006	4.4
2007	6.2
2008	5.3
2009	5.2
2010	5.5
2011	4.7
2012	4.5
2013	4.4
2014	4.1
2015	4.4
2016	4.1
2017	3.9
2018	3.6
2019	3.3
2020	3.5
2021	3.1
2022	2.9