56% (1978)

80% (1966)

46% (1977)

60% (1961)

55% (1986)

75% (1966)

60% (1989)

37% (1967)

0% (1986)

90% (1957)

70% (1968)

80% (1978)

0% (1961)

0% (1973)

40% (1976)

60% (1978)

65% (1972)

0% (1974)

35% (1987)

70% (1974)