71% (1975)

63% (1966)

77% (1980)

58% (1977)

57% (1971)

60% (1973)

40% (1975)

52% (1973)

32% (1972)

67% (1965)

50% (1992)

80% (1963)

0% (1969)

74% (1969)

40% (1987)

0% (1962)

0% (1970)

31% (1988)

0% (1979)

0% (2001)