Year	% of people at risk
2003	100
2004	99.6
2005	98.8
2006	97
2007	93.7
2008	95.6
2009	98.5
2010	97.9
2011	96.4
2012	97
2013	96.1
2014	96.2
2015	96.6
2016	96.9
2017	95.1
2018	93.2
2019	89.8
2020	87.3
2021	84.2
2022	89.9