Year % of population 2000 23.506902037894886 2001 23.48176285910078 2002 23.591178028270942 2003 23.69138504022705 2004 23.738131933525576 2005 23.812855299659446 2006 23.890246181611005 2007 23.9524293583469 2008 24.0531631651936 2009 24.327392152851562 2010 24.610286374614496 2011 24.92781071594513 2012 25.248067420523636 2013 25.59850687699405 2014 25.932547329265923 2015 26.26495587970618 2016 26.6221194607709 2017 26.980728998872404 2018 27.32469098643223 2019 27.497431964912582 2020 27.6591818735761 2021 27.812362544164298 2022 27.66080546423842