Year	% of people at risk
2003	89.7
2004	86.5
2005	85.9
2006	84.2
2007	81.5
2008	81.1
2009	80.5
2010	79.3
2011	76.6
2012	74.9
2013	73.9
2014	73.4
2015	72.3
2016	70.3
2017	66.1
2018	61.6
2019	60.5
2020	61.1
2021	56.8
2022	51