60% (1952)

78% (1982)

70% (2019)

67% (2012)

75% (1989)

78% (1976)

69% (2002)

62% (1974)

68% (2001)

72% (1966)

65% (1968)

61% (1996)

68% (2016)

64% (1995)

69% (2018)

78% (2018)

76% (1969)

50% (1972)

66% (2017)

78% (1996)