59% (1955)

62% (1990)

35% (1963)

45% (1996)

43% (1992)

35% (1984)

65% (1988)

0% (1961)

66% (1971)

64% (1952)

50% (1985)

65% (1979)

47% (1986)

10% (1977)

30% (1977)

40% (2002)

47% (1994)

43% (1987)

52% (1970)

55% (1974)