41% (1976)

73% (1990)

56% (1972)

73% (1989)

46% (1973)

86% (1980)

0% (1966)

76% (1977)

0% (1964)

54% (1977)

57% (1973)

10% (1971)

63% (1985)

73% (1992)

63% (1981)

0% (2004)

50% (1979)

60% (1983)

60% (1972)

10% (1963)