44% (1963)

72% (1969)

45% (1962)

50% (1996)

48% (1968)

55% (1958)

60% (1989)

49% (1958)

64% (1972)

64% (1954)

53% (1953)

55% (1952)

64% (1957)

40% (1992)

50% (1984)

40% (1973)

50% (1961)

55% (1964)

40% (1990)

37% (1993)