77% (1962)

77% (2017)

73% (1985)

77% (2008)

71% (1977)

52% (2011)

77% (2000)

62% (1995)

69% (1956)

67% (1988)

72% (1968)

54% (1979)

75% (1991)

68% (1981)

79% (2019)

65% (1988)

70% (2002)

62% (1984)

71% (1993)

71% (1967)