Year % of people at risk 2007 38.5 2008 39.4 2009 43.2 2010 45.1 2011 42.8 2012 42.8 2013 41.9 2014 40.5 2015 25.9 2016 24 2017 22.7 2018 27.4 2019 23.1 2020 23.7 2021 32.4 2022 34