64% (1972)

40% (1992)

64% (1957)

40% (1990)

45% (1962)

50% (1999)

50% (1996)

48% (1968)

68% (1992)

55% (1958)

55% (1958)

71% (1958)

52% (1995)

49% (1958)

48% (1982)

47% (1952)

37% (1993)

53% (1953)

50% (1984)

61% (1953)