Indigenous Services Canada. Report on Trends in First Nations Communities, 1981 to 2016. Government of Canada, 2020, p. 34, https://www.sac-isc.gc.ca/DAM/DAM-ISC-SAC/DAM-STSCRD/STAGING/texte-text/report-trends-FN-Comm-1981-2016_1578933771435_eng.pdf.