Year	% of people at risk
2003	49.1
2004	51.1
2005	47.8
2006	43.5
2007	38.9
2008	42.8
2009	43.8
2010	45.1
2011	43.6
2012	41.9
2013	35.4
2014	29.6
2015	31.1
2016	30.8
2017	31.2
2018	28.3
2019	32.8
2020	33.3
2021	32.2
2022	43.7