63% (1966)

69% (1973)

72% (1972)

75% (1973)

63% (1968)

59% (1969)

45% (1971)

61% (1967)

51% (1966)

0% (2006)

63% (1969)

49% (1965)

56% (1965)

50% (1967)

75% (1968)

54% (1964)

64% (2008)

56% (1964)

60% (1966)

52% (1971)