65% (1960)

67% (1983)

68% (1957)

60% (1976)

71% (1975)

56% (2006)

59% (1964)

72% (1989)

70% (1983)

65% (1958)

52% (1959)

46% (1961)

69% (1960)

55% (2011)

70% (1994)

62% (1966)

68% (1959)

0% (1967)

62% (1963)

56% (1973)