Year	% of population
1997	22.917684392505723
1998	23.614610677510615
1999	24.851309999294525
2000	24.871639267962017
2001	26.176790424673907
2002	26.995306962036913
2003	29.45538975320788
2004	28.995920827372903
2005	29.7267791729817
2006	30.987442181268804
2007	32.30633531157196
2008	32.11886903635988
2009	32.17535980861723
2010	32.647134390375825
2011	36.035036479507895
2012	37.4480594746498
2013	38.33622781013732
2014	39.84410975685895
2015	40.06062936183271
2016	44.61180063733004
2017	44.32045529499294
2018	47.076262787856834
2019	47.57823967951332
2020	48.38554479023482
2021	50.523806163282345
2022	51.12034182819786