Year % of population 2000 40.74712991143632 2001 39.92995295431699 2002 36.6495468468544 2003 35.726849188037555 2004 34.82222263113729 2005 33.76873253903725 2006 32.68503123633796 2007 31.645465395920347 2008 30.56323356142636 2009 29.495088926725458 2010 28.423156270742748 2011 28.214896832399983 2012 27.20715267180556 2013 26.251751851272022 2014 25.276005932730044 2015 24.26506468795651 2016 23.22335335470047 2017 22.5851154116908 2018 21.481694143821752 2019 20.40505628416197 2020 19.36220070211835 2021 18.533750771397095 2022 18.159300717045713