The percentage of 6th-8th grade students that were recognized as being absent from public school 20 or more days out of all students. Source: Baltimore City Public School System Years Available: 2009-2010, 2010-2011, 2011-2012, 2012-2013, 2013-2014, 2014-2015, 2015-2016, 2016-2017, 2018-2019