Year	% of births
2000	22.12214006
2001	21.85659212
2002	21.58536196
2003	21.30221861
2004	21.01540268
2005	20.72399486
2006	20.44736067
2007	20.18190346
2008	19.93457473
2009	19.70010248
2010	19.4865014
2011	19.28586426
2012	19.09619716
2013	18.89800429
2014	18.68843451
2015	18.47101705
2016	18.24002476
2017	17.98718309
2018	17.73607427
2019	17.48795942
2020	17.24938655