Year % of children ages 12-23 months 1985 58.37750732270817 1986 69.85830606248805 1987 75.9522830896061 1988 80.62359527863553 1989 85.54306914569733 1990 89.88682092833922 1991 82.00988799225921 1992 72.18245864765048 1993 80.63526530327493 1994 83.08129700072969 1995 82.97209730849919 1996 81.5289927199012 1997 79.62931187097217 1998 80.97496444647226 1999 80.41965964330446 2000 83.76617222574234 2001 84.78770242030268 2002 82.52570823625135 2003 83.91371582042555 2004 83.09885309456777 2005 83.60131859210304 2006 85.2869380643255 2007 88.39438547031716 2008 90.81791145715921 2009 89.96691201984801 2010 89.09394596546332 2011 89.34871452101883 2012 91.95669614881729 2013 92.57260314961654 2014 91.45426830592312 2015 90.87693882251706 2016 89.74372564979109 2017 90.6692991995824 2018 91.91542937553125 2019 92.53660110707528 2020 89.04729783791473 2021 86.94345886805498 2022 88.86255094647224