在第二次世界大战前后，许多有一技之长的人来自欧洲，特别是德国。 在最近几十年中，亚洲统领移民，以印度、巴基斯坦以及菲律宾居多。
Before and after World War II, many skilled people came from Europe, Germany in particular; in recent decades, Asian immigrants dominate, with India, Pakistan, and the Philippines occupying the top ranks.