Year	% of people at risk
2003	48.6
2004	47.1
2005	43.5
2006	36.4
2007	33.3
2008	40.2
2009	49.2
2010	56
2011	54
2012	53.3
2013	51.2
2014	49.8
2015	45.2
2016	38.4
2017	31.8
2018	29.2
2019	30.7
2020	31.6
2021	25.6
2022	22.6