74% (1977)

64% (1983)

65% (2010)

60% (2001)

73% (2016)

66% (2017)

78% (1997)

68% (1997)

61% (1986)

34% (1984)

61% (1998)

71% (2022)

66% (2021)

51% (2015)

52% (2004)

72% (2007)

74% (2015)

76% (2020)

50% (2024)

70% (2023)