Year % of population 2000 38.6325922411663 2001 39.2138927756731 2002 39.7975122600416 2003 40.3843399260161 2004 40.9739127227244 2005 41.5662155428041 2006 42.1612373131913 2007 42.7593900572731 2008 43.3598096505447 2009 43.9629138276265 2010 44.5760294474077 2011 45.1988552239167 2012 45.8314595763886 2013 46.4730952162018 2014 47.1234151576749 2015 47.7824336445913 2016 48.4497546132228 2017 49.1249663684435 2018 49.8080066638708 2019 50.4980643454126 2020 51.1953778058648 2021 51.8991010387331 2022 51.9951525151374