Year % of people at risk 2003 32.6 2004 28.1 2005 26 2006 23.1 2007 22.4 2008 20.3 2009 17.3 2010 16.6 2011 14.8 2012 13.1 2013 12 2014 9.9 2015 8 2016 9.1 2017 9 2018 6.8 2019 5.5 2020 4 2021 2.7 2022 3.1