However , it is declining in many areas including the Northern and Western United States , Oceania ( Australia and New Zealand ) , northern Europe ( including Great Britain , Scandinavia and other places ) , France , Germany , the Canadian provinces of Ontario , British Columbia , and Quebec , and parts of Asia ( especially the Middle East -- due to the Christian emigration , South Korea , Taiwan , and Macau ) .
However it is becoming smaller in some areas , some of them are ; Oceania ( Australia and New Zealand ) , Northern Europe ( with Great Britain , Scandinavia and other places ) , France , Germany , the Canadian provinces of Ontario , British Columbia , and Quebec , the Western and Northern parts of the United States , and parts of Asia ( especially the Middle East , South Korea , Taiwan and Macau ) .