The first Koreans who came to Canada were Christians. They were sent by Canadian missionaries to study Christianity in Canada. Not many stayed in Canada though; and in 1965, the total Korean population of Canada was only about 70 people. However, after 1966's change of Canadian immigration laws, South Korean immigration to Canada grew. Between 1970 and 1980, 18,148 Koreans immigrated to Canada, and another 17,583 came in the 1990s. In the late 1990s, South Korea became the fifth-largest source of immigrants to Canada. Toronto has the most Koreans in Canada, but Vancouver has the highest growth rate of Koreans. They have increased 69% since 1996. Montreal has the third-most Korean immigrants at this time. In 2001, More Koreans went to Canada than to the United States. The number of temporary residents also grew after the Canadian government made visas not necessary; South Korea sent the most international students to Canada in the late 1990s. Many of the Koreans who came to Canada, came from the Korean population in China.