55% (1988)

50% (1951)

50% (1967)

50% (1987)

64% (1988)

0% (1989)

70% (1969)

58% (1975)

62% (1961)

58% (1979)

59% (1964)

63% (1992)

61% (1965)

50% (1958)

45% (1988)

57% (1955)

50% (1968)

65% (1960)

47% (1974)

70% (1986)