Year % of children ages 12-23 months 1984 10 1985 10 1986 35 1987 59 1988 41 1989 86 1990 80 1991 90 1992 92 1993 90 1994 71 1995 51 1996 51 1997 56 1998 60 1999 67 2000 74 2001 70 2002 65 2003 90 2004 94 2005 86 2006 94 2007 79 2008 78 2009 82 2010 73 2011 84 2012 93 2013 99 2014 98 2015 89 2016 93 2017 91 2018 96 2019 96 2020 95 2021 90 2022 96