50% (1973)

62% (1989)

50% (1976)

0% (1991)

45% (1979)

0% (1985)

0% (1984)

60% (1984)

20% (1979)

52% (1979)

0% (1968)

57% (1988)

0% (1965)

0% (1966)

50% (1964)

0% (1986)

0% (1990)

50% (1975)

0% (2008)

55% (1962)