74% (1969)

47% (1966)

44% (1972)

69% (1984)

50% (1969)

56% (1960)

46% (1967)

48% (1982)

61% (1994)

44% (1980)

55% (1929)

80% (1985)

75% (1974)

36% (1990)

37% (1973)

50% (2006)

0% (1966)

23% (1973)

0% (2004)

36% (1974)