Year	% of people at risk
2003	1.9
2004	2.3
2005	2.5
2006	2
2007	1.7
2008	1.9
2009	2.3
2010	2.3
2011	1.8
2012	1.8
2013	1.3
2014	1.2
2015	1.1
2016	0.9
2017	0.7
2018	0.8
2019	1.6
2020	1.5
2021	1.3
2022	1.2