62% (1976)

0% (1987)

56% (1975)

64% (1968)

0% (1981)

62% (1985)

50% (1988)

0% (1980)

0% (1984)

30% (1975)

50% (1965)

0% (1977)

42% (1986)

70% (1991)

70% (1982)

0% (1977)

74% (1964)

60% (1967)

46% (1977)

80% (1985)