Emigration from the Netherlands has been occurring for at least four hundred years, and may be traced back to the international presence of the Dutch Empire and its monopoly on mercantile shipping in many parts of the world. Dutch people settled permanently in a number of former Dutch colonies or trading enclaves abroad, namely the Dutch Caribbean, the Dutch Cape Colony, the Dutch East Indies, Surinam, and New Netherland. Since the end of the Second World War, the largest proportion of Dutch emigrants have moved to Anglophone countries, namely Canada, Australia, New Zealand, and the United States, mainly seeking better employment opportunities. Postwar emigration from the Netherlands peaked between 1948–63, with occasional spikes in the 1980s and the mid-2000s. Cross-border migration to Belgium and Germany has become more common since 2001, driven by the rising cost of housing in major Dutch cities.