75% (1984)

36% (1986)

30% (1974)

70% (1969)

72% (1983)

80% (1981)

73% (1975)

72% (1981)

50% (1981)

34% (1986)

66% (1986)

50% (1972)

60% (1981)

74% (1981)

56% (1981)

62% (1984)

0% (1964)

70% (1986)

0% (1973)

42% (1983)