Spending on state-defined categories is shown as a portion of 2018 in-district expenditures for Andover, and for the average of our ten comparable districts. Andover spends at or below the median in three categories (*), including pupil services, instructional materials, and administration, and in the highest quartile in six categories (+) of insurance, retirement programs and other; operations and maintenance; guidance, counseling and testing; other teaching services and professional development.