Year	% of births
2000	20.54806026
2001	20.66479944
2002	20.76705635
2003	20.83968522
2004	20.89889597
2005	20.94857896
2006	20.98660419
2007	21.01884766
2008	21.05233296
2009	21.08972332
2010	21.12655672
2011	21.16590244
2012	21.18314082
2013	21.17539742
2014	21.15982127
2015	21.13553573
2016	21.10506632
2017	21.08948
2018	21.08273142
2019	21.10259009
2020	21.14414662