Year % of population 2000 6.4545572257458 2001 7.66547439187183 2002 8.88565368804983 2003 10.1362371194278 2004 11.3353000997634 2005 12.5338225447733 2006 13.7317612866965 2007 14.9287973517559 2008 16.1250365499333 2009 17.3196247396948 2010 18.5129732606357 2011 19.7043086556293 2012 20.8937174720611 2013 22.0803159001061 2014 23.2631070043176 2015 24.4416443149061 2016 25.6150210066189 2017 26.7829708869529 2018 27.9447655542304 2019 29.099388976813 2020 30.246799713062 2021 30.4322467707954 2022 30.6179496792131