57% (1985)

70% (1980)

80% (1983)

37% (1977)

0% (1985)

58% (1975)

42% (2015)

58% (1980)

60% (1973)

42% (1976)

35% (1977)

56% (1984)

50% (1979)

62% (1980)

0% (1967)

70% (1979)

62% (1979)

69% (1971)

47% (1977)

64% (1978)