64% (1965)

63% (1966)

60% (1981)

60% (1967)

65% (1962)

47% (1995)

58% (1975)

50% (1995)

58% (1964)

67% (1966)

40% (1979)

67% (1962)

47% (2003)

60% (1980)

60% (1970)

61% (1967)

60% (1967)

40% (1977)

57% (1979)

55% (1970)