Year	% of births
2000	14.0616686
2001	14.13662645
2002	14.22402888
2003	14.3121678
2004	14.39827449
2005	14.48752076
2006	14.58046013
2007	14.67314942
2008	14.75677253
2009	14.8511959
2010	14.9423177
2011	15.01666043
2012	15.08208071
2013	15.14142604
2014	15.19274365
2015	15.24180286
2016	15.28549144
2017	15.31493241
2018	15.34364404
2019	15.35576703
2020	15.35550278