48% (1957)

71% (1998)

50% (1961)

69% (1963)

0% (1979)

30% (1979)

0% (2002)

76% (1978)

0% (1989)

60% (1973)

50% (1973)

0% (2002)

55% (1962)

77% (1987)

70% (1983)

0% (1963)

44% (1967)

0% (1979)

50% (1968)

50% (1986)