Year % of people at risk 2003 17.6 2004 18.6 2005 18.4 2006 16.7 2007 17.3 2008 16.2 2009 14.6 2010 12.4 2011 11.2 2012 12.6 2013 9 2014 12.5 2015 12.3 2016 11.3 2017 16.2 2018 10.4 2019 10.3 2020 9.5 2021 8.7 2022 8.2