Year	% of people at risk
2003	81
2004	78.3
2005	76.9
2006	73.8
2007	70.5
2008	67.2
2009	63.1
2010	57.8
2011	52.8
2012	51.3
2013	53.2
2014	46.4
2015	42.5
2016	37.9
2017	30.1
2018	25
2019	23.8
2020	24.1
2021	22.8
2022	20.4