Schema Document NCLB School End SY Status xml layout file. Author: Keith Fox - AEM Corporation Version: 4.0 Created: April 2008 Includes: pbdmi-code-sets-4.xsd Includes: pbdmi-file-xmit-4.xsd The percentage of students in the school identified as economically disadvantaged according to the state definition. Also known as School Poverty Level. Percentage is expressed as a numeric value of (5,4), with 100 percent represented as 1.0000.