Year	% of births
2000	12.86407151
2001	12.91808654
2002	12.96669847
2003	13.00497368
2004	13.04565046
2005	13.08480512
2006	13.12024015
2007	13.15037982
2008	13.17433429
2009	13.20043595
2010	13.21361298
2011	13.22871038
2012	13.23251964
2013	13.23547007
2014	13.23553758
2015	13.23504907
2016	13.2268563
2017	13.23003378
2018	13.22969709
2019	13.23473631
2020	13.23393119