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
Prime Minister of Vietnam the Central Military Commission and the Central Police Party Committee. The tenure of a prime minister is five years, and the term is renewable once. The current prime minister Nguyễn Xuân Phúc has served since 2016. In case of incapacity, a deputy prime minister assumes the office of acting prime minister until the prime minister resumes duty, or until the appointment of a new prime minister. The powers and prestige of the prime minister have varied through the years. Pham Van Dong, Vietnam's second prime minister, often lamented that in practice he had little power. Since the death of Pham