Year % of people at risk 2003 16 2004 14.6 2005 12.7 2006 6.9 2007 6.2 2008 3.9 2009 4.5 2010 5.5 2011 4.4 2012 5.3 2013 5.8 2014 6.1 2015 6.8 2016 8.2 2017 7.7 2018 7.7 2019 6.1 2020 6.2 2022 4.6