Year % of people at risk 2003 88.5 2004 86.8 2005 85.4 2006 83.9 2007 82.2 2008 80.6 2009 77.4 2010 75.6 2011 71.4 2012 69.2 2013 66.4 2014 63.1 2015 59.4 2016 55.4 2017 52.4 2018 48.4 2019 46.3 2020 49.6 2021 43.9 2022 40.2