Principal Kathleen Snipes

Principal Kathleen Snipes briefly fills in for a second-grade teacher at Faxon Elementary School on Feb. 1 in Kansas City. 

The state has collected more than 73,000 survey responses that reflect details such as who is substitute teaching in Missouri public schools, what they’re paid and where they work.

The data, released Wednesday by the state Department of Elementary and Secondary Education, may not offer a clear reason why some school districts struggle to recruit substitute teachers, though more people are applying for certification.