BT Associations Association report 2021-22: BT-Association-report-2021-22 Association report 2020-21: BT-Association-report-2020-21 Association report 2018-19: BT-Association-report-2018-19 Association report 2017-18: BT-Association-report-2017-18 Association report 2015-16: BT-Association-report-2015-16