Year	% of people at risk
2003	25.3
2004	24.3
2005	23.1
2006	16.8
2007	13.4
2008	12.8
2009	12.8
2010	9.1
2011	9.7
2012	8.8
2013	8.2
2014	8.5
2015	7.1
2016	8.3
2017	6.4
2018	6.6
2019	8.6
2020	6.4
2021	13.8