Year	% of births
2000	12.80615382
2001	12.76400936
2002	12.70876931
2003	12.63147752
2004	12.54564229
2005	12.44236392
2006	12.32444051
2007	12.20291701
2008	12.07877414
2009	11.95087178
2010	11.83616085
2011	11.726263
2012	11.62006798
2013	11.55151165
2014	11.50816692
2015	11.51986669
2016	11.58865907
2017	11.68747415
2018	11.80806403
2019	11.89347494
2020	11.92652931