Year	% of population
2001	33.41020815493741
2002	32.51677593185091
2003	31.57872502822695
2004	30.532616472271954
2005	29.828321632377094
2006	29.139873093001366
2007	28.537282038760477
2008	27.82224220366419
2009	25.61508238437105
2010	24.049628883151716
2011	22.66923315205675
2012	22.995363228977965
2013	22.465787046794897
2014	23.291118758704105
2015	24.54541580249971
2016	25.282759876766047
2017	25.753759104083215
2018	25.968920846220144
2019	26.903556340218504
2020	27.735785918162467
2021	28.380114501240385