65% (1973)

70% (1983)

71% (1969)

50% (2001)

72% (1965)

57% (1994)

62% (1989)

61% (1961)

44% (1981)

44% (1987)

67% (1969)

71% (1962)

64% (1962)

80% (1983)

0% (1959)

30% (1973)

56% (1971)

50% (1965)

60% (1953)

50% (1975)