60% (2021)

56% (2023)

69% (2022)

67% (2019)

61% (2018)

67% (2011)

66% (1981)

63% (2020)

66% (1975)

71% (1987)

66% (2023)

59% (2023)

60% (2024)

72% (2021)

76% (2018)

61% (2009)

63% (2005)

66% (2009)

56% (1983)

75% (1991)