42% (1986)

55% (1957)

45% (1947)

45% (1971)

45% (1958)

42% (1980)

80% (1950)

47% (1990)

50% (1962)

50% (1960)

50% (1957)

50% (1946)

42% (1951)

50% (1974)

60% (1951)

50% (1961)