74% (1973)

65% (1976)

57% (2020)

65% (1990)

57% (1974)

61% (1966)

50% (1993)

74% (1954)

55% (1974)

60% (1976)

62% (1972)

54% (1974)

67% (1962)

45% (1995)

52% (1988)

72% (1957)

40% (2011)

50% (1954)

55% (1953)

62% (1966)