63% (1991)

63% (1978)

62% (1962)

65% (1976)

46% (1987)

48% (1973)

36% (1986)

50% (1962)

63% (1950)

35% (1983)

75% (1967)

44% (1985)

63% (1986)

55% (1968)

54% (1972)

57% (1987)

65% (1966)

0% (1980)

58% (1983)

63% (1979)