47% (2003)

60% (1981)

42% (1970)

58% (1975)

54% (1967)

60% (1966)

60% (1970)

55% (1965)

62% (1967)

57% (1979)

70% (1968)

20% (1972)

63% (1966)

20% (1981)

65% (1962)

50% (1964)

47% (1995)

64% (1965)

53% (1967)

50% (1995)