0% (1970)

60% (1963)

78% (1977)

0% (1988)

50% (1987)

30% (1956)

46% (1973)

63% (1980)

60% (1989)

52% (1971)

10% (1971)

0% (1994)

50% (1987)

48% (1973)

57% (1971)

60% (1988)

0% (1965)

63% (1973)

90% (1987)

50% (1989)