71% (1953)

75% (2009)

58% (1967)

78% (1991)

69% (1971)

65% (1953)

75% (1961)

71% (2005)

60% (2013)

78% (1977)

68% (2023)

61% (1964)

30% (1993)

71% (1974)

52% (1974)

61% (1975)

50% (1955)

53% (1977)

72% (1996)

72% (1973)