Year % of one-year-old children 1997 2 1998 31 1999 46 2000 60 2001 60 2002 60 2003 64 2004 64 2005 77 2006 94 2007 94 2008 98 2009 97 2010 97 2011 97 2012 98 2013 98 2014 98 2015 98 2016 97 2017 97 2018 97 2019 97 2020 97 2021 97 2022 97