Largest 'Religious' Group in Canada by Census Division

Data is from here (I think): https://www12.statcan.gc.ca/census-recensement/2021/dp-pd/prof/details/page.cfm?LANG=E&GENDERlist=1&STATISTIClist=4&DGUIDlist=2021A000011124&HEADERlist=32&SearchText=Canada

I could not find who made the map.