75% (1964)

70% (1991)

59% (2023)

59% (2017)

54% (2009)

64% (2007)

60% (2002)

56% (2001)

67% (1994)

56% (1996)

76% (1973)

55% (2002)

66% (1956)

73% (1987)

63% (2020)

74% (2018)

73% (2009)

69% (1980)

64% (2000)

68% (2002)