Historical rankings of Prime Ministers of Australia teaching or researching in the fields of Australian politics or history" to place Australia's prime ministers in five categories; 40 responded. Five points were awarded to prime ministers judged "outstanding", four for those considered "good", three for "average", two for "below average", and one for "failure". The three caretaker prime ministers were excluded from consideration, as was the serving prime minister, Julia Gillard. John Curtin received the highest average rating, 4.78, and he was the only prime minister who no respondents gave a rating lower than "good". It is possible to compare the highest approval ratings achieved by Prime Ministers
Julia Gillard put her in office". On 21 January 2012, Wilkie announced that he was withdrawing his support for the Gillard Government after it broke the agreement he had signed with Gillard to implement mandatory pre-commitment for all poker machines by 2014. He stated that he would support the government's alternative plan to trial pre-commitment in the ACT and require that pre-commitment technology be installed in all poker machines built from 2013, but that this fell short of what he had been promised in return for supporting the government. In response, Gillard and Minister for Families, Housing, Community Services and Indigenous Affairs