Year	% of people at risk
2003	9.6
2004	8.6
2005	9.1
2006	9.7
2007	10.2
2008	8.8
2009	11
2010	10.7
2011	11.9
2012	11.3
2013	11.6
2014	9.8
2015	9.1
2016	8.2
2017	7.4
2018	6.1
2019	5.5
2022	4.7