57% (1970)

62% (1978)

61% (1971)

72% (1997)

70% (1952)

77% (1952)

68% (1971)

61% (1989)

34% (1999)

63% (2011)

73% (2010)

61% (2017)

59% (2017)

63% (1968)

68% (1976)

69% (2011)

41% (2021)

62% (2020)

66% (2010)

72% (2021)