Year	% of people at risk
2003	21.6
2004	11.1
2005	14.2
2006	9.1
2007	13.4
2008	16.8
2011	14.4
2012	22.2
2013	10.2
2014	12.8
2015	9.9
2017	4.5
2019	6.9
2020	1
2021	1.1
2022	1.6