Year % of people at risk 2003 6.3 2004 6.1 2005 6.5 2006 6.9 2007 7.3 2008 6.3 2009 7.9 2010 7.7 2011 7.8 2012 8.1 2013 6.4 2014 6 2015 5.8 2016 5.1 2017 3.8 2018 3.4 2019 3.2 2022 2.7