Maralinga was conceived as a testing ground where major tests could be conducted annually, but this did not occur, and Operation Antler was the last major test series conducted there. One reason was public sentiment. A 1952 poll indicated that 58 per cent of Australians supported British nuclear testing in Australia, with only 29 per cent against, but support steadily declined, and by 1957 only 37 per cent were in favour, with 49 per cent opposed. This augured poorly for the future of Maralinga should there be a change of government, and the 1961 Australian federal election reduced Menzies' majority to just one seat. The decline in Australian support for testing was part of a worldwide trend that resulted in the moratorium on nuclear testing from November 1958 to September 1961.