Group and mass migration gradually picked up, first, to Queensland and, after World War I, to Sydney whose automobile industry drew many. Immigration was not without difficulty as Maltese workers tended to be looked down upon and restrictions and quotas were applied. A significant percentage of the Maltese immigrants had intended to stay only temporarily for work but many settled in Australia permanently. Maltese immigration to Australia reached its peak during the 1960s. The majority of Maltese immigrants reside in Melbourne's western suburbs of Sunshine (especially on Glengala Rd) and St Albans, and in Sydney's western suburbs of Greystanes and Horsley Park. The Maltese, as in their home country, are predominantly Roman Catholic.