Year	% of births
2000	19.42225827
2001	19.46593367
2002	19.50322608
2003	19.53504611
2004	19.55790795
2005	19.56474264
2006	19.5449446
2007	19.50675692
2008	19.45307598
2009	19.38632134
2010	19.31122561
2011	19.22769447
2012	19.13070053
2013	19.04062954
2014	18.96024327
2015	18.89011222
2016	18.82843168
2017	18.79144117
2018	18.74402725
2019	18.71573023
2020	18.69435005