Year	% of people at risk
2003	0.7
2004	2.7
2005	1.4
2006	1
2007	0.7
2008	0.5
2009	0.4
2010	0.4
2011	0.3
2012	0.3
2013	0.3
2014	0.2
2015	0.2
2016	0.1
2017	0
2018	0
2019	0
2020	0.1
2021	0.1