Year	% of people at risk
2003	40.9
2004	34.5
2005	33.4
2006	29.3
2007	39.9
2008	50.9
2009	42.2
2010	47.3
2011	50.1
2012	51.2
2013	43.5
2014	45.4
2015	44.2
2016	48.6
2017	51.5