56% (1977)

60% (2001)

65% (2023)

63% (2022)

64% (2013)

72% (2018)

63% (2013)

60% (2016)

70% (2023)

72% (2003)

68% (2007)

71% (2020)

52% (2021)

52% (2023)

43% (2020)

59% (2003)

78% (2023)

63% (2023)

66% (2002)

79% (2020)