Year	% of population
2000	0.573180845014164
2001	0.540393255770127
2002	0.507751941248154
2003	0.475263011171645
2004	0.442926437110284
2005	0.41067727940375
2006	0.378526809673042
2007	0.346487620682433
2008	0.314586892087328
2009	0.28282995413293
2010	0.251239340727552
2011	0.219830284250207
2012	0.1886160418521
2013	0.157612893015944
2014	0.126839626804092
2015	0.0963085929944122
2016	0.0660366441061632
2017	0.0360392763110253
2018	0.0063307826492906
2019	0
2020	0
2021	0
2022	0