69% (2003)

72% (2023)

73% (2008)

73% (2015)

71% (2023)

59% (2020)

72% (2020)

76% (2019)

76% (2005)

69% (2010)

71% (2006)

70% (1988)

64% (1965)

59% (2010)

69% (2023)

64% (2024)

77% (2005)

64% (2023)

69% (2024)

71% (1951)