о том, что Новая Зеландия хорошо зарабатывает на иммигрантах, я давно догадывался, но никаких цифр у меня не было.
вот сейчас нашёл данные об этом.
As at the 2006 Census, New Zealand had a migrant population of approximately 927,000. The study estimates that this migrant population had a positive net fiscal impact of $3,288 million in the 2005/06. The net impact of migrants estimated in this study represents growth of approximately 15 percent per annum in real terms. The New Zealand–born population of 3.1 million people in 2006 had a lower net fiscal impact of $2,838 million.
Department of Labour. (2011). International Migration Outlook – New Zealand 2010/11