63% (1979)

60% (1981)

54% (1983)

65% (1978)

72% (1971)

70% (1973)

64% (1973)

72% (2015)

75% (1970)

59% (1972)

0% (1964)

0% (1969)

50% (1966)

40% (1972)

56% (1968)

75% (1964)