65% (1971)

55% (1995)

70% (2022)

71% (2011)

63% (2018)

58% (1967)

61% (1982)

68% (2002)

66% (2024)

58% (2023)

62% (2018)

74% (1976)

61% (2024)

66% (1991)

54% (1980)

69% (2007)

76% (1963)

65% (1964)

60% (1960)

50% (2009)