Year % of children ages 12-23 months 1980 60 1981 58 1982 62 1983 69 1984 83 1985 83 1986 79 1987 79 1988 76 1989 78 1990 91 1991 82 1992 90 1993 86 1994 90 1995 93 1996 85 1997 96 1998 93 1999 87 2000 93 2001 84 2002 87 2003 89 2004 93 2005 92 2006 84 2007 93 2008 85 2009 93 2010 86 2011 91 2012 87 2013 91 2014 94 2015 97 2016 97 2017 90 2018 95 2019 90 2020 85 2021 82 2022 86