47% (1983)

50% (1963)

60% (1985)

70% (1955)

59% (1978)

45% (1966)

49% (1960)

44% (1973)

70% (1986)

0% (1987)

45% (1991)

42% (1986)

50% (1977)

70% (1959)

35% (1974)

0% (1986)

20% (1984)

54% (1956)

63% (1985)

70% (1983)