Year % of people at risk 2003 60.9 2004 60.4 2005 60.3 2006 58.3 2007 55.4 2008 55.2 2009 52.6 2010 53.5 2011 52.5 2012 52.7 2013 49.9 2014 49.5 2015 48.1 2016 48.2 2017 46.4 2018 44.9 2019 43.6 2020 49.4 2021 45.6 2022 44.5