58% (1987)

76% (1963)

46% (1986)

70% (1966)

75% (1964)

0% (1956)

38% (1986)

63% (1969)

70% (1966)

30% (1975)

40% (1973)

0% (1987)

90% (1961)

43% (1970)

63% (1975)

70% (1976)

40% (1976)

70% (1989)

70% (1966)

60% (1981)