Year % of population 2000 36.9481213461385 2001 37.5806865894037 2002 38.2126799889212 2003 38.8436031481293 2004 39.4738982619878 2005 40.2552973589026 2006 41.0378421311969 2007 41.820986961241 2008 42.6055743876338 2009 43.3892235845163 2010 44.1727775368766 2011 44.9557063792181 2012 45.7379371546935 2013 46.5189417208381 2014 47.299102963258 2015 48.077446714498 2016 48.854353375217 2017 49.6293115469512 2018 50.4022432734825 2019 51.1722061354795 2020 51.9400233315503 2021 52.7043071877967 2022 53.4658834155826