69% (2010)

60% (2016)

52% (2023)

65% (1999)

72% (2003)

62% (2008)

68% (2022)

73% (2022)

67% (2020)

67% (1971)

67% (1978)

54% (1986)

64% (1991)

68% (2011)

67% (2023)

67% (1993)

74% (1973)

54% (2000)

66% (2024)

71% (1986)