Year	% of births
2000	9.314949322160768
2001	9.3576126093169
2002	9.39543646564729
2003	9.427477200428413
2004	9.43821694664578
2005	9.439224476338577
2006	9.446797188474044
2007	9.453450772367686
2008	9.463351659236203
2009	9.471326919908117
2010	9.479354129674205
2011	9.487226532046243
2012	9.500990448964684
2013	9.510147640569018
2014	9.51819137594509
2015	9.531296353708704
2016	9.564061999672564
2017	9.574872225350026
2018	9.588886075891335
2019	9.601038996167775
2020	9.621227061498532