63% (1962)

60% (1972)

80% (1972)

67% (1966)

79% (1968)

86% (1967)

71% (1968)

64% (1959)

0% (1958)

70% (1974)

80% (1968)

0% (1956)

0% (1970)

0% (1970)

0% (1966)

72% (1965)

50% (1966)

80% (1956)

70% (1963)

77% (1971)