Year % of children ages 12-23 months 1992 79.710407256272 1993 79.81902200267402 1994 80.22176709759968 1995 80.47176617360903 1996 83.74045325019569 1997 87.66033889610614 1998 87.92044607088128 1999 88.3974515689966 2000 91.22237792665408 2001 92.8921366437136 2002 89.09337327704527 2003 86.90376064087224 2004 89.66699250911347 2005 93.19934659174719 2006 95.42008437108332 2007 95.41025788950921 2008 95.46706296936304 2009 92.80932771767577 2010 91.47081559251109 2011 93.6153515634176 2012 94.07918175734068 2013 94.95818312732781 2014 91.10654398745156 2015 92.34982807523723 2016 91.0868421988391 2017 95.50650284061908 2018 95.54042878359384 2019 96.48631936224741 2020 93.3649230312837 2021 94.72654618113836 2022 93.92922216655589