Year	% of births
2000	17.721741653143646
2001	17.76805217184681
2002	17.71022059706666
2003	17.616370658505918
2004	17.440409407004672
2005	17.20419908917053
2006	17.032483805673944
2007	16.82460512969063
2008	16.631556683465977
2009	16.510987463939337
2010	16.34944310154028
2011	15.964477509675584
2012	15.598212780778406
2013	15.66120789651788
2014	15.29819826822332
2015	15.430080703217415
2016	15.095745506496224
2017	15.065649695470249
2018	15.228766145282572
2019	15.157672655258716
2020	15.342238754569436