Year % of people at risk 2003 70 2004 68.3 2005 66 2006 59.2 2007 53.8 2008 48.6 2009 43.2 2010 42.4 2011 34.9 2012 40.2 2013 26.5 2014 30.1 2016 39.6 2017 38.3 2018 37.5 2019 33.5 2020 24.3 2021 22.6 2022 25.6