Year % of births 2000 12.15330025 2001 12.19766468 2002 12.2443377 2003 12.29360867 2004 12.34526268 2005 12.40141544 2006 12.46310584 2007 12.52074581 2008 12.57404213 2009 12.62316785 2010 12.6650357 2011 12.68203887 2012 12.68062217 2013 12.6609595 2014 12.6274076 2015 12.58650122 2016 12.55108571 2017 12.51185616 2018 12.489164 2019 12.48726617 2020 12.48430117