0% (1960)

0% (1987)

0% (1976)

0% (1970)

78% (1977)

0% (1974)

40% (1981)

43% (1992)

75% (1952)

76% (1985)

0% (1974)

57% (1958)

56% (1960)

0% (1974)

50% (1970)

50% (1960)

57% (1969)

70% (1983)

60% (1976)

56% (1973)