Year % of people at risk 2003 80.9 2006 83.8 2007 83.2 2008 82.9 2009 81.4 2010 81.1 2011 79.1 2012 78.9 2013 78.9 2014 78 2015 76.9 2016 76.4 2017 75.9 2018 75.6 2019 74.7 2020 74.9 2021 71.8 2022 73