Aggregate Spending for Bolton Public Schools as of June 30,2021 Aggregate Spending for Bolton Public Schools as of June 30, 2020 Aggregate Spending for Bolton Public Schools as of June 30, 2019 Aggregate Spending for Bolton Public Schools as of June 30, 2018 Aggregate Spending for Bolton Public Schools as of June 30, 2017 Aggregate Spending for Bolton Public Schools as of June 30, 2016 Aggregate Spending for Bolton Public Schools as of June 30, 2015 Aggregate Spending for Bolton Public Schools as of June 30, 2014