ocr: A: former British colony, New. Zealand became a dominion in 1907 and: fully: independent in 1947. 01 1962 Western Samoa gains independence. lE 1965 The Cook Islands become sell-governing. la . 1972 Elections won by. LP.Norman Kirk prime minister. L - - 1973-1974 International oil crisis brings severe economic problems. la - 1974 Norman Kirk dies. William Rowling prime minister. la 1975 Elections won by conservative NP party. Prime Minister Robert Muldoon introduces program of economic austenty. 01 1976 Immigration cut by over 80%. la 1978 Elections; NP retains power with: reduced majority. la ...