Year	% of people at risk
2003	99.3
2004	98.3
2005	96.3
2006	97.3
2007	98.4
2008	98.7
2009	98.5
2010	98.3
2011	99.3
2012	98.3
2013	98.1
2014	98.7
2015	98.4
2016	98
2017	96.7
2018	96
