Year % of population 2000 16.7495412631405 2001 17.8374973619031 2002 18.9377084118085 2003 20.0496673863976 2004 21.0516679507767 2005 22.0475380365859 2006 23.0518749621917 2007 24.0645348010044 2008 25.086433573722 2009 26.1167029131359 2010 27.1564387955898 2011 28.2056610456094 2012 29.2647488845642 2013 30.3333249560335 2014 31.4123242113775 2015 32.5017277166698 2016 33.5993505838941 2017 34.7044548393316 2018 35.8174460723716 2019 36.9385275856622 2020 37.1217354310828 2021 37.3008520349427 2022 37.475878862445