Year	% of people at risk
2003	51.1
2004	50
2005	48.9
2006	48.4
2007	47.7
2008	47.1
2009	46
2010	45.3
2011	44.4
2012	42.8
2013	41.3
2014	39.2
2015	36
2016	34.2
2017	32.9
2018	29
2019	30.3
2020	33.2
2021	28.1
2022	25.9