Year % of population 2000 13.470213108026373 2001 13.786458149035804 2002 14.445662179156315 2003 15.11277852526128 2004 15.84600800618588 2005 16.602394660096483 2006 17.382727316001024 2007 18.184210108955607 2008 19.003836148272228 2009 19.844639515456567 2010 20.708042288124187 2011 21.69839017641242 2012 22.89806605996462 2013 23.705486408997416 2014 24.434217714468392 2015 25.169338832390054 2016 25.902889700744996 2017 26.62995467689295 2018 27.348222874053018 2019 28.06270542422489 2020 28.754119354297615 2021 29.26921954358604 2022 29.456889198680777