Year % of people at risk 2003 3.9252262273024496 2004 4.190995884865167 2005 4.1261148449319744 2006 3.888551908134076 2007 3.9436137590134472 2008 3.527926905658548 2009 3.6150920826762043 2010 2.9754262867014516 2011 2.8217989424762484 2012 3.0627404209488422 2013 2.642549395196148 2014 2.962009842413082 2015 2.7642969197158966 2016 2.596699197052536 2017 2.936282566557361 2018 2.340816778541895 2019 2.3212234284956317 2020 2.1999807872685477 2021 2.070331382988568 2022 2.2622589298678033