Year	% of people at risk
2003	90.3
2004	85.3
2005	92.6
2006	94.3
2007	94.1
2008	91.9
2009	81.4
2010	75.7
2011	69.3
2012	72.9
2013	79.5
2014	77.3
2016	75.3
2017	74.1
2018	68.8
2019	70.5
2020	70.1
2021	68.9
2022	68.4