Year	% of births
2000	9.231477658183632
2001	9.27332609551089
2002	9.310474864818135
2003	9.34396303962003
2004	9.357959563917433
2005	9.361048981812209
2006	9.368016835234515
2007	9.373356426653691
2008	9.381961825702993
2009	9.390075326020735
2010	9.398902309602567
2011	9.408815267759143
2012	9.42423527084947
2013	9.433997874049268
2014	9.444863201172232
2015	9.46047306355685
2016	9.494965423345604
2017	9.51170939626117
2018	9.5305613007115
2019	9.545956329124985
2020	9.566671618889616