Year	% of population
2000	24.298090454322
2001	24.0888426503068
2002	23.8728393634413
2003	23.650176635584
2004	23.420953254232
2005	23.1854747834238
2006	22.943496216832
2007	22.6949555949021
2008	22.4397874649219
2009	22.1787287225688
2010	21.91114412795
2011	21.6394437023066
2012	21.3636814611217
2013	21.0843347410705
2014	20.8014753891389
2015	20.5151732917708
2016	20.2261632736844
2017	19.9340975677245
2018	19.6395078950285
2019	19.3427265381576
2020	19.0438568790033
2021	18.7432452595913
2022	18.4410060898606